Post by: TexasRedNeck on April 21, 2020, 10:16:57 PM
Those of you who know me know that I favor standardized platforms with interchangeable ammo and parts. Ar-10, ar-15, Remy 870,glocks, not withstanding a few novelty pieces (1911s - Ken) and bolt guns.
So here is my dilemma. I was opposed to AR pistols for years until the “brace” rulings made them very usable and no tax stamp. Sub guns are cute but I really like rifle power if given the choice. Now that I’m warming to the idea of a very packable AR pattern pistol I know the limitation of the lightweight 5.56 especially at super short barrel lengths and what the loss of velocity does to lethality. That’s why the project has bee gathering dust in my mind for a year. I already have SBRs in 5.56 and a 10 inch barrel is about as short as you can get without compromising the ballistics too drastically.
For years I thought the 300blk was a novelty but after this many years its here to stay. I like that it uses AR mags and bolts and is really interchangeable with much of the 5.56 stuff I already have. I can also form my own brass from 5.56
Ballistics out of a super short barrel is much better and subsonic still packs a punch.
So I’m debating if I should add 300blk to my inventory and perhaps buy that sig mcx rattler pistol in 300blk.? I know it’s not an AR per se but aside from form factor what are the pros and cons of adding the 300blk to the stable?
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Post by: Bigdave_185 on April 21, 2020, 10:24:33 PM
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Post by: KensAuto on April 21, 2020, 10:29:28 PM
Sorry not sorry.
Post by: stlaser on April 21, 2020, 10:30:38 PM
Post by: TexasRedNeck on April 21, 2020, 10:40:39 PM
Shawn that the debate I’m looking for.
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Post by: TexasRedNeck on April 21, 2020, 10:53:30 PM
Terminal ballistics is strong and mag capacity is nice,
https://www.thetruthaboutguns.com/5-56-nato-vs-300-blackout-ballistics/
When the 5.56 impacts flesh below 2700fps (std 55gn) it just becomes an ice pick and does not do as much damage due to the failure to tumble and fragment.
Some of the guys here that have been to the sandbox can probably attest to hadjis not going down from short barreled 5.56 rounds which is why they started evolving to the 62,75,77grn rounds.
A 220gn 30 cal projectile is a pretty efficient killer.
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Post by: stlaser on April 21, 2020, 11:45:52 PM
Post by: Flyin6 on April 22, 2020, 08:54:16 AM
Here is some writing on ballistics. I’m primarily interested in terminal ballistics. In the urban jungle the likelihood of rolling out of the truck and engaging a target at 100 yards plus is slim. Really slim. So intended use is as a subsonic threat reducer(eliminator) from within 100 yards. Likely less than 50.Several comments:
Terminal ballistics is strong and mag capacity is nice,
https://www.thetruthaboutguns.com/5-56-nato-vs-300-blackout-ballistics/
When the 5.56 impacts flesh below 2700fps (std 55gn) it just becomes an ice pick and does not do as much damage due to the failure to tumble and fragment.
Some of the guys here that have been to the sandbox can probably attest to hadjis not going down from short barreled 5.56 rounds which is why they started evolving to the 62,75,77grn rounds.
A 220gn 30 cal projectile is a pretty efficient killer.
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a 123 grain .30 cal bullet is a darned good people killer (Unfortunately)
Some of you may recall the story I shared from a SF buddy who shot a bad person twice, then twice again, then twice more over a couple minutes to finally get the job done. All shots impacted in the chest/upper abdomen area.
My .300 with a 10" barrel seems to be a bunch more powerful than my 5.56's
Being able to use all my AR mags for whichever gun(s) and things like bolt inchangerability make having the .300 good.
Having a good running .300 eliminates the need to stock an AK, unless you plan on being invaded by mexican cartel types or the Chinese Army.
Post by: JR on April 22, 2020, 12:53:53 PM
Nice thing is it was designed for a short barrel and suppressed. Probably as good as a 6.8 with a lighter round for pigs too.
What drew me were the same that drew you TRN, just another barrel is all you need.
Post by: TexasRedNeck on April 22, 2020, 09:32:55 PM
First thing I’ve heard from a CW4 that actually makes sense. (Or that I’m smart enough to understand. )Here is some writing on ballistics. I’m primarily interested in terminal ballistics. In the urban jungle the likelihood of rolling out of the truck and engaging a target at 100 yards plus is slim. Really slim. So intended use is as a subsonic threat reducer(eliminator) from within 100 yards. Likely less than 50.Several comments:
Terminal ballistics is strong and mag capacity is nice,
https://www.thetruthaboutguns.com/5-56-nato-vs-300-blackout-ballistics/
When the 5.56 impacts flesh below 2700fps (std 55gn) it just becomes an ice pick and does not do as much damage due to the failure to tumble and fragment.
Some of the guys here that have been to the sandbox can probably attest to hadjis not going down from short barreled 5.56 rounds which is why they started evolving to the 62,75,77grn rounds.
A 220gn 30 cal projectile is a pretty efficient killer.
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a 123 grain .30 cal bullet is a darned good people killer (Unfortunately)
Some of you may recall the story I shared from a SF buddy who shot a bad person twice, then twice again, then twice more over a couple minutes to finally get the job done. All shots impacted in the chest/upper abdomen area.
My .300 with a 10" barrel seems to be a bunch more powerful than my 5.56's
Being able to use all my AR mags for whichever gun(s) and things like bolt inchangerability make having the .300 good.
Having a good running .300 eliminates the need to stock an AK, unless you plan on being invaded by mexican cartel types or the Chinese Army.
Although sitting here in the dark makes me wonder if I should spend the $ on a thermal night vision
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Post by: JR on April 22, 2020, 09:49:13 PM
Quote
Although sitting here in the dark makes me wonder if I should spend the $ on a thermal night vision
THAT, is a whole nother debate!!
Post by: Flyin6 on April 23, 2020, 08:59:10 AM
But assumin' its people you're fightin'
I would place an invisible laser on the gun (visible only under NVG)
Then spend your money on good aviation type nods like the ANVIS-6 or older Litton 909's
That system will allow you to engage targets closer up and evade without being seen.
Downside is if the folks you're in gun play with also have nods.
Post by: TexasRedNeck on April 23, 2020, 06:42:40 PM
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Post by: Flyin6 on April 23, 2020, 08:28:41 PM
Yeah the pvs14 I have is good but goggles with an ir laser would be better. Who needs a sight picture when you just follow the line to the target. I really like thermal for detection, especially in the brush or moonless nights.I agree, thermal detection just spoils the surprise. I can't begin to recall all the times I watched some boob sneaking up on the helicopter or hiding while we flew by.
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Conversation: I have a haji twelve oclock, three hundred meters
Gunner: Searching
Other gunner: Got him, I'll designate
Laser on
Note that now the haji who hears the aircraft approaching is about to "Hide" but he has one laser and two GAU-17's almost pointing at him.
Other gunner, Hey chief, pull off a little so I can get the shot.
Me: leave him alone, he's not bothering anyone
Then there's a flash of light
Both gunners: Taking fire, he's mine
Pilot pulls up hard going through a thousand AGL in a couple seconds
Gunners: Why did you do that?
Me: The flash was a piece of carbon that came out of the exhaust of lead
Gunners: Ah...
Moment later
Pilot: Contact, one oclock, 500 meters in the rocks
left gunner: Searching
Left gunner: Contact, its a jackal... ... ... Sir, can I shoot him... ... ... Please...
Post by: BobbyB on April 24, 2020, 09:42:57 PM
Thermal: Yea it's cool but eventually it'll get heavy when carrying.
NVGs: Yea it's cool but better have a good helmet with a mount or suffer the agony of a skull crusher.
DBAL / PEQ-15 (Civilian version): Yea they are cool, but if you don't have the NVGs it's not too useful.
Night vision is the cornerstone to winnin' a gunfight that happens at night in my humble opinion.
But assumin' its people you're fightin'
Downside is if the folks you're in gun play with also have nods.
There is truth to that, but also NVG has its drawbacks and limitations. People get too dependent on using technology, technology fails. Someone once asked me what I'd do if someone broke into my apartment and they had NVGs... my answer.. a bright light right in the face. NVG is great, when it's dark. Hit the lights and it's a new story.
Post by: Flyin6 on April 24, 2020, 09:58:35 PM
Nods and light
In our old business the problem was light from fires. And guess what happens quite a bit during gun fights?
A fire anywhere in my FOV would pretty much disable my nvg capability. Heck I'd just throw on the white light and make a normal landing. Like no one noticed the chinook landing in the front yard...
One exception to that is the Litton 909's which can accomodate some of that. I wore them for a couple years and when the minis opened up, I could still see to make the landing or fly around the tower, whereas the ANVIS boys could not.
But that laser is useful for other things...blinding. Green is best for flash dazzle up through permanently blinding someone. Ask Bobby, I'll let him talk about it, but just dazzle the approaching person/vehicle, then wakl up and sort their blinded butts out, one pile for good, one pile for gunshot.
Post by: TexasRedNeck on August 13, 2020, 07:46:40 AM
So despite having ample supplies, all the panic buying got me in the mood. Knowing that Academy Sports never marks up their firearms or ammo during panic buying I started circling the local academy’s Mon, Wed and Fri morning as that is when their inventory hits the shelf.
Picked up a few pistols some 9mm ball ammo and then got back on the 300blk train. Bought a complete upper with polished nickel boron BCG and an LPK and grip from AR15Part.com to complete one of a few lowers I have stashed somewhere. Then although I bought the lowers stripped some 6-8 yrs ago, I faintly recall that the FFL marked the 4473 as a rifle. Not wanting to file more paperwork for an SBR I started researching again.
I emailed the dealer to see if they have records and can confirm how it was transferred because I didnt want to get charged with building an SBR
Then I ran across a ATF open letter to FFLs from 2008 in which they clearly state that stripped lowers must be transferred as Other since they are neither rifle or pistol, which seems to clear the way,even if the FFL made a mistake, it does not change the law. Consult your own attorney here disclaimer.
So with a complete upper a stripped lower and LPK I’m on the hunt for a brace. Supplies are low everywhere but I found a Maxim Defense collapsible brace
(https://uploads.tapatalk-cdn.com/20200813/34b8231fe81c877f8d61ab79e234e249.jpg)
http://cloud.tapatalk.com/s/5f34b9c05a8df/070709-openletter-ffl-gca_0_0.pdf (http://cloud.tapatalk.com/s/5f34b9c05a8df/070709-openletter-ffl-gca_0_0.pdf)
(https://uploads.tapatalk-cdn.com/20200813/814a9cf6efc0a8f8904170dc72ff9e51.jpg)
So now with the basics in hand or en route, I think I have the foundation. I was going to use the Law Tactical folding stock adapter, but I’m not sold on that yet and they are out of stock everywhere at the moment.
Springfield Amory just released a Saint edge PDW and Evac pistol variants. The EVAC uses the law tactical folding stock adapter and the pantheon Dolos take down barrel system. Those are out of stock everywhere as well, but it seems like a nice package if you want to wait to get a pistol. The main drawback is they only offer it in 5.56 at the moment and with a 5.5 inch barrel that’s too much of a ballistic compromise for me.
My original plan was to use the Law Tactical folding stock adapter and the dovolos system but due to availability and I’m going to stick with a fixed barrel and brace for my first build. I’ll build another with these later to try. Pistols can be finicky anyway and I don’t want to introduce too many variables until I have a formula that works.
So then I turned my attention to ammo. 5.56 can be cut down and formed into 300blk by taking .40 inch off the cartridge. I have plenty of brass for 5.56 but the dies for the 300 blk for my Dillon 650 are on backorder and it is recommended that you anneal the cases before forming the new .30 caliber neck. That requires another $500 investment in an annealer. So in the interim I was able to find 1000 once fired 300blk cases and am bidding on some carbide 300blk Dillon dies on eBay.
I have plenty of powder and projectiles for 30 cal so I can get loading soon when the cases arrive. Going to use a 210 gn Berger VLD hunting bullet for some sub sonic loads.
For now I’ll spin on the TB arms 30-p1 suppressor when finished and see how it functions suppressed and subsonic. I don’t intend to load any supersonic ammo for it so its going to be exclusively run with sub ammo and a can.
More to come as the lower gets built. I’ll try and document the process with pics and descriptions.
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Post by: JR on August 13, 2020, 12:16:10 PM
I was lucky and got lots of new primed cases and ammo before the 300 was really going. Its the darn bullets that a re crazy, but I am getting pulldowns sometimes.
Post by: TexasRedNeck on August 13, 2020, 01:59:55 PM
Did get my order placed for another 30lbs of powder. Primers are really scarce right now. I stocked up on military small rifle primers years ago and I have a ton of them and large rifle primers and quite a few of large pistol but now that I intend to reload 9mm and some small primer 45 I have to source that.
I tell you what. When this blows over I’m going to buy enough to last two lifetimes.
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Post by: TexasRedNeck on August 14, 2020, 07:13:11 PM
(https://uploads.tapatalk-cdn.com/20200814/f72e70e70aecef497745cc2e6d792f82.jpg)
(https://uploads.tapatalk-cdn.com/20200814/839c31f46d7b9db1e1aa2f7bd534ee38.jpg)
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Post by: TexasRedNeck on August 15, 2020, 08:34:10 AM
Trying to source reloading dies. Dillon is backordered
(https://uploads.tapatalk-cdn.com/20200815/80a94c0df982371b5fd84e828787aa71.jpg)
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Post by: TexasRedNeck on August 15, 2020, 10:21:23 AM
(https://uploads.tapatalk-cdn.com/20200815/3729893c0832376fde641789030c338c.jpg)
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Post by: Bigdave_185 on August 15, 2020, 11:34:21 AM
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Post by: TexasRedNeck on August 15, 2020, 11:36:53 AM
I bought the upper already complete. Just have to build the lower and snap it together.
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Post by: TexasRedNeck on August 15, 2020, 09:28:37 PM
I tried to label all the parts for you here. When you order the lower parts kit, there are no instructions.
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Post by: TexasRedNeck on August 15, 2020, 09:33:41 PM
(https://uploads.tapatalk-cdn.com/20200816/ccaefe87c6d4f8b105c90e9cbe93bfd7.jpg)
(https://uploads.tapatalk-cdn.com/20200816/a310fd378cdc848dead969af4a6bdcb3.jpg)
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Post by: TexasRedNeck on August 15, 2020, 09:42:42 PM
Note that here is where good tools come into play. These are roll pin punches that have a centering nub on the end to help it stay on the rollpin. Start the roll pin from the butt end of the receiver as the other side does not have clearance for the rollpin punch. Get it started and carefully drive to just before it enters the channel. Then place the spring and the button and the lever in the slot and then carefully drive the pin through. (https://uploads.tapatalk-cdn.com/20200816/42214e8eed9b0c33252d481eccfde019.jpg)
(https://uploads.tapatalk-cdn.com/20200816/e61111138df1fb705521932f1c420858.jpg)
(https://uploads.tapatalk-cdn.com/20200816/2465207f27399be139b0af07855b9069.jpg)
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Post by: TexasRedNeck on August 15, 2020, 09:49:24 PM
(https://uploads.tapatalk-cdn.com/20200816/fc2a897f7263a32a156fa140380f2746.jpg)
(https://uploads.tapatalk-cdn.com/20200816/34d52dbbc8890a70fef5ca9684405a37.jpg)
Function check (https://uploads.tapatalk-cdn.com/20200816/76e06fc4bd400bdd6063e1d25d3c145f.jpg)
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Post by: TexasRedNeck on August 15, 2020, 10:00:13 PM
So the sear spring is larger on one end than the other. Here you see it installed incorrectly with the large end up. If you do this the edges of the spring will catch on the side of the channel for the sear. That larger end is made to hold that spring in the channel of the trigger so you will need to force it in with a punch to get it down in the slot correctly. Then insert the sear and install in the lower using the pin. Insert pin from the right side of the lower with the groved end to the outside.(https://uploads.tapatalk-cdn.com/20200816/09048e43e7ad3e23f3eecceb2bb284d6.jpg)
(https://uploads.tapatalk-cdn.com/20200816/6b79c92aa7bb82c9a8dda7dacf37c471.jpg)
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Post by: TexasRedNeck on August 15, 2020, 10:05:41 PM
(https://uploads.tapatalk-cdn.com/20200816/394182c33226b104e629ef39fe02bada.jpg)
(https://uploads.tapatalk-cdn.com/20200816/b0a3a8587903e6705abaf6d0b9b0a616.jpg)
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Post by: TexasRedNeck on August 15, 2020, 10:08:07 PM
Note the orientation of the spring. Again insert pin from right side with grove to the right side. Note how the hammer spring sits in the grove of the trigger pin to prevent walking. (https://uploads.tapatalk-cdn.com/20200816/696724a23f312d2b0f2198ae585e8fdc.jpg)
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Post by: TexasRedNeck on August 15, 2020, 10:09:43 PM
(https://uploads.tapatalk-cdn.com/20200816/3539e574d36a41a96c07194fb40fbeb6.jpg)
Roll pin to the rear of the receiver and the the spring loaded detent to the front.
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Post by: TexasRedNeck on August 15, 2020, 10:21:01 PM
I disassembled the Maxim stabilizing brace so I can work with the boss and buffer tube without the brace. This is where you install the rear take down pin because the detent and spring are held in place by the stock/brace block.(https://uploads.tapatalk-cdn.com/20200816/e730dc102cf13554c2517249ee825fd2.jpg)
(https://uploads.tapatalk-cdn.com/20200816/a2e1993d5fef7b38dee8ef9860e9caba.jpg)
Now just before you tighten the buffer tube install the buffer retaining pin and spring. The buffer tube covers part of the pin to retain it.(https://uploads.tapatalk-cdn.com/20200816/d852956df410e86c5f1dce71f3a80283.jpg)
Then insert your buffer spring and buffer (https://uploads.tapatalk-cdn.com/20200816/e0a26f022af0775588bc517452c48b0d.jpg)
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Post by: TexasRedNeck on August 15, 2020, 10:22:09 PM
Lower complete. Slap the upper on it and GTG(https://uploads.tapatalk-cdn.com/20200816/6d7fcb40504f3166e30c8b322663f11d.jpg)
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Post by: KensAuto on August 15, 2020, 10:33:35 PM
A buddy of mine just visited Dillon and he said the same. Place was sold out. He ended up borrowing my .223 dies.
Post by: JR on August 15, 2020, 11:49:15 PM
I put tape on the receiver when building so as not to mar it driving roll pins. There are holes in takedown spring pockets, you can compress the spring and pin it, which I like. Forgetting that "sear spring" may let more than 1 round go per pull,,,,,,,,,,,
Do you like the stock grip? I find my finger sits low so I use a grip with a backstrap.
Post by: TexasRedNeck on August 16, 2020, 08:11:09 AM
I used to worry about scratches on my “working guns” but after my first training class many years ago, I now usually build them and then throw them on the ground just to get the first scuffs out of the way...lol
I mean, if it was a 1911, I’d cover it in tape and then put it in a glass case when I was finished.....(Ken)
Right now I need some dies so I can load some ammo. It’s just a hammer at this point
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Post by: JR on August 16, 2020, 01:44:11 PM
Have you seen the OLight stuff? I really like there goodies and they use a USB magnetic charging system.
Post by: BobbyB on August 21, 2020, 06:57:13 PM
Post by: TexasRedNeck on August 21, 2020, 07:36:49 PM
Dillon dies are seriously back ordered. I found a place that said they had them in stock. I have yet to see a shipping invoice but they did say due to the dem panic that it was taking 7-10 days.
This time I’m not playing. The panic ends and I’m binging. Even on stuff I don’t own or intend to own. I’m gonna be sitting on a huge stockpile when the next panic comes and I’ll be printing money.
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Post by: BobbyB on August 22, 2020, 10:31:34 PM
Post by: Flyin6 on August 23, 2020, 09:54:55 AM
I want one, I keep thinking about it. I have friends who own 300Blk and they all love it, but only one reloads. Maybe I'll have to pick their brains more and see if they'll let me spend shoot theirs a little more to decide.Bobbee, I like mine. I like the bigger boom, but that's from the shorter barrel. I like how it pushes back, more like an AK than an AR. But when I'm shootin' at frogs in the mud, the crater that 150 grain makes compared to my green tip 5.56 sez it all.
Plus, I remember what those third an inch bullets did to the aluminum of those Bell, Sikorsky, McDonnell-Douglas, Boeing, and Aerospatiale helicapeters that got hit. Really a load of energy in that bullet. Wonder what deers think when they get plowed over by 1?
Post by: BobbyB on August 23, 2020, 10:44:13 AM
Bobbee, I like mine. I like the bigger boom, but that's from the shorter barrel. I like how it pushes back, more like an AK than an AR. But when I'm shootin' at frogs in the mud, the crater that 150 grain makes compared to my green tip 5.56 sez it all.
Plus, I remember what those third an inch bullets did to the aluminum of those Bell, Sikorsky, McDonnell-Douglas, Boeing, and Aerospatiale helicapeters that got hit. Really a load of energy in that bullet. Wonder what deers think when they get plowed over by 1?
What barrel length are you and Charles running?
Post by: JR on August 23, 2020, 01:44:42 PM
Post by: Bigdave_185 on August 23, 2020, 02:20:41 PM
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Post by: BobbyB on August 23, 2020, 02:59:51 PM
I still want but haven’t the cash flow. To many other project takin my $
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That's how I'm sitting, except I didn't build a house like you did.
Post by: Flyin6 on August 23, 2020, 03:55:44 PM
Post by: KensAuto on August 23, 2020, 03:59:20 PM
10.7"I will refrain. I will refrain. I will refrain.
Post by: TexasRedNeck on August 23, 2020, 04:02:44 PM
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Post by: JR on August 23, 2020, 05:24:07 PM
Post by: Bigdave_185 on August 23, 2020, 10:51:04 PM
I tell you what. My wife just refied the house again, in two years it’s been done three times and I have cut a grand almost out of my payment, last week I dumped the PMI and now I can start making the payment the same to tackle that mortgage!!!! So f”8!$ excited to get a interest rate below 3% it’s insane for fixed!!!I still want but haven’t the cash flow. To many other project takin my $
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That's how I'm sitting, except I didn't build a house like you did.
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Post by: Bigdave_185 on August 23, 2020, 10:51:43 PM
Good boy. From a Dave to a Ken. You have chosen the higher road and the Lord knows!10.7"I will refrain. I will refrain. I will refrain.
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Post by: JR on August 23, 2020, 10:56:45 PM
300aac, 9 in barrel with 200grn, subsonic with a full powder load.
125-150 for hunting, 150s are the cheapest. Nice is all you change is the upper.
Post by: TexasRedNeck on August 24, 2020, 09:33:33 PM
Also another 23 lbs of powder showed up today. Accurate, Unique and Titegroup. Now if I can just find more small pistol primers and some 9mm dies(https://uploads.tapatalk-cdn.com/20200825/0559a8db39127ad9e6e8e5327553a047.jpg)
I also function tested the G43 tonight since I’m going to cut the misses loose with it and wanted to be sure. Yup. Point click ship. Like all glocks.
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Post by: TexasRedNeck on August 27, 2020, 01:17:46 PM
Dillon also shipped my 9mm dies so I should be set as long as I can find more small primers.
And I got 4 more lower parts kits to assemble.
(https://uploads.tapatalk-cdn.com/20200827/d95f6f1d4d30087f6c001c21055db3ea.jpg)
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Post by: TexasRedNeck on September 11, 2020, 07:33:27 AM
(https://uploads.tapatalk-cdn.com/20200911/9b5b0351ec701da1b106413a2eabdd4e.jpg)
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Post by: TexasRedNeck on September 14, 2020, 10:24:02 AM
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Post by: JR on September 14, 2020, 01:51:10 PM
Post by: Bear9350 on September 14, 2020, 04:11:11 PM
$1 a round for reloads seems up there. Are the bullets that much for 200gn?
How much it costs to reload can vary depending on how you calculate the cost of brass. If you are figuring in the entire cost of brass and a more expensive bullet it can easily be $1 per round. For most of my reloading I divide the cost of each piece of brass up over 5 re-loadings and I end up around $.50 per round with relitively cheap bullets. Some of the folks I shoot with use a bullet that costs nearly twice as much an are probably closer to $.80.
Post by: TexasRedNeck on September 15, 2020, 06:54:34 AM
https://www.lehighdefense.com/308-maximum-expansion-194gr-subsonic-bullet
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Post by: BobbyB on September 16, 2020, 08:21:09 PM
Post by: TexasRedNeck on September 26, 2020, 07:46:01 PM
Trigger is nice and it didnt blow up.
Shot across the Ohler 35P and got 1084 average (speed of sound at sea level is about 1122)
The rounds aren’t powerful enough to lock back the bolt after the last round and on one round the bolt didnt go all the way into battery, which I attribute to the low powered rounds and lack of lube. The rest of them functioned just fine. I’m going to bump the powder up a tenth to 10.9 which should get me to 1095, still subsonic, and might be just enough to hold the bolt open without the can.
Problem is that I don’t have the right powder funnel or case feed adapter for the Dillon press so I ordered those and when they get here I’ll clean up the press and add the dies to a new quick change tool head so I can get rolling on loading a few hundred rounds.
I’m going to order another suppressor to use on it. The extra gas pressure should help the cycling speed. Wait times are stupid long right now so it will be 6-8 months minimum before the can will show up.
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Post by: JR on September 26, 2020, 07:56:41 PM
Yeah the wait is crazy. Guys kid about visiting their sup while waiting for the paperwork. Sure wish that bill would go through taking them off the NFA.
Post by: Bear9350 on September 28, 2020, 09:51:43 AM
Well handloaded 5 rounds using Hornady 208g AMax over 10.8g of Accurate 1680 and test fired the new 300blk
Trigger is nice and it didnt blow up.
Shot across the Ohler 35P and got 1084 average (speed of sound at sea level is about 1122)
The rounds aren’t powerful enough to lock back the bolt after the last round and on one round the bolt didnt go all the way into battery, which I attribute to the low powered rounds and lack of lube. The rest of them functioned just fine. I’m going to bump the powder up a tenth to 10.9 which should get me to 1095, still subsonic, and might be just enough to hold the bolt open without the can.
Problem is that I don’t have the right powder funnel or case feed adapter for the Dillon press so I ordered those and when they get here I’ll clean up the press and add the dies to a new quick change tool head so I can get rolling on loading a few hundred rounds.
I’m going to order another suppressor to use on it. The extra gas pressure should help the cycling speed. Wait times are stupid long right now so it will be 6-8 months minimum before the can will show up.
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Try playing with seating depth. Seating them deeper should help. Mag length loads don't seem to run well. A lot if guys will start by seating the bullet just shy of touching powder.
6-8 months doesn't sound so bad to me. I won a certificate for a TBAC last November. Took 8 months for them to build the suppressor so I could get a SN to start the paperwork. Tax stamp check cashed early July. Was originally hoping to have the can this fall for deer season but that's no going to happen. Been seriously considering a Form 1 and picking up one of those solvent trap kits for the 22LR trainer I just picked up. Start the paper work while you order and wait for the solvent trap. A month later drill some holes and your done.
Post by: TexasRedNeck on September 28, 2020, 08:05:11 PM
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Post by: TexasRedNeck on October 04, 2020, 10:04:17 PM
It functions well after a liberal oiling and the bolt locks back. Some of the rounds won’t chamber when I rack the bolt but they chamber under operation. Mashing the forward assist shoves it in. The brass said it was fully prepared and ready but I think the sizing die was a bit off.
So I loaded up the other 95 rounds of 208g Hornady AMax over 10.9 then loaded some Nosler 200gn and started firing over the oehler 35p. Weird. More powder with a slightly lighter bullet and I can get it over 1000 FPS.
I can’t figure out why same powder same case lighter bullet and more powder and it comes out of the barrel slower.
I’m going to regroup and see if I’m missing something.
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Post by: JR on October 04, 2020, 10:41:15 PM
Can you play with the tube or buffer weight? That might be easier.
Post by: TexasRedNeck on October 04, 2020, 10:45:20 PM
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Post by: JR on October 04, 2020, 11:00:09 PM
Post by: TexasRedNeck on October 05, 2020, 08:16:40 AM
Using my updated ballistic program and an Oehler 35P
First will be to test a known round on the chrono with my GAP 308 just to be sure.
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Post by: TexasRedNeck on October 05, 2020, 07:45:19 PM
Set up the chrono and shot 3 rounds over it. It registered within about 20fps of what I had taped to the side of it and it also matched up with what the ballistics program said I should expect.
So I shot some of the Hornady 208 AMax rounds out of the 300 and got the same basic result I got before. Then loaded some more Nosler 200g and against got slower results than the same powder over the heavier AMax. I even weighed the Nosler bullets to see if they had somehow put 220 gn in the wrong box, but they weighed 199.9gr so that was not the problem.
So I just said roll with it and bumped the powder up to 12.3 to get avg velocity of about 1090, which is close to what I was getting with the 208 AMax over 10.8 of A1680
I also ordered some Berger VLD hunting in 220gn today that I will load up. Good news is that the gun in functioning flawlessly now and bolt is locking back. I sighted it in with the iron sights and then threw the Eotech on it to adjust to co-witness. Would you believe that it was dead on and needed no adjustment? The last AR I had it on was a bushmaster 14.5inch.
Pretty cool.
Post by: JR on October 05, 2020, 07:54:21 PM
Post by: TexasRedNeck on October 05, 2020, 09:36:46 PM
(https://uploads.tapatalk-cdn.com/20201006/17e64d44758512544dfdfb56ce6ef268.jpg)
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Post by: JR on October 05, 2020, 10:21:52 PM
Just run an adapter, you have to try that!
Post by: Bigdave_185 on October 05, 2020, 10:39:49 PM
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Post by: TexasRedNeck on October 06, 2020, 08:42:28 AM
Dave the can has to have a stamp but the pistol does not. Eventually I may get another can for it but I want a 338 can with big volume for my 300WM I have now and possibly a 338 in the future.
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Post by: TexasRedNeck on October 06, 2020, 06:37:58 PM
(https://uploads.tapatalk-cdn.com/20201006/1c40dd9b1d413da32f8c1df1018fa075.jpg)
I don’t like the pick and pluck foam. Will get something better later but for a quick trip tomorrow this will do.
Also put some rounds on steel today from about 50 yards. Definitely has more kinetic energy. Put those big steel targets swinging even subsonic 200 gn where a full power 5.56 would barely shake them.
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Post by: JR on October 06, 2020, 07:02:47 PM
Wait until the 338 hits it. One reason I went with that, watching vids of a 6.5 vs 338 hitting steel. Big diff between hitting the target and HITTING the target.
Post by: TexasRedNeck on October 06, 2020, 09:26:11 PM
Even though this is texas I find it hard to imagine having to make hits from beyond 1200. My GAP 300WM gets the job done. 338 would be superfluous and a 50 would be awesome as an anti materiel.
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Post by: JR on October 06, 2020, 10:52:32 PM
You could look at something in the 400+ or 375hh cal to fill the gap and not break the bank like a 50bmg would do.
Post by: TexasRedNeck on October 07, 2020, 06:50:52 AM
I also like the cheytac system in 375 and 408
As bad as my eyesight is getting I’m gonna need an astral telescope to make hits to 2500
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Post by: JR on October 07, 2020, 01:56:19 PM
Think I want a bullpup next round.
Post by: Bear9350 on October 08, 2020, 10:23:44 AM
They just came out with a new gen of the Vortex Viper spotters (I think that's the right model). You can pick up the old generation either new or used for pretty cheap right now.
Post by: JR on October 08, 2020, 11:14:12 AM
Post by: BobbyB on October 17, 2020, 01:25:52 PM
Post by: TexasRedNeck on October 17, 2020, 03:45:17 PM
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Post by: TexasRedNeck on October 17, 2020, 08:34:09 PM
26-1/2 with the brace extended
The can is 9 inches. It’s a precision rifle can so I’m looking at a shorter fatter can that’s about 6 inches.
With the can and brace extended it’s about 34 inches.
Brace collapsed and the can is about 31-1/2
With a shorter can it would be 28-1/2 and 31 brace collapsed and extended
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Post by: TexasRedNeck on October 17, 2020, 09:46:03 PM
Loading up 220gn
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Post by: KensAuto on October 18, 2020, 02:14:23 PM
Post by: Bigdave_185 on November 11, 2020, 04:00:54 PM
Anything against these complete kits?
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Post by: JR on November 11, 2020, 04:49:43 PM
Post by: TexasRedNeck on November 11, 2020, 07:08:39 PM
If you get the standard BCG and charging handle you can get it for $400
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Post by: Bigdave_185 on November 11, 2020, 08:10:02 PM
Check out AR15part.com. I got a really nice upper and am happy with it. Well built and has the nickel boron carrier. You should be able to get one under $500What’s the thought on barrel length on these? Sorry you guys are simply the most experienced point of contact
If you get the standard BCG and charging handle you can get it for $400
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I want a shorter rifle thinking 7-10”
https://www.ar15part.com/8-5-300-Blackout-Pistol-Upper-Assembly-Cone-Brake-p/85300cmu1x7fsmlg2rlcb.htm
Did I miss understand? Does the 300 use the same bolt group as a .223 ? The bolt group options on list that
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Post by: JR on November 11, 2020, 09:00:38 PM
9.5 barrel seems to be what it was made around for suppressor use.
Post by: Bigdave_185 on November 11, 2020, 09:11:50 PM
Yes, same BCG, same mags. Anything over 200grn should be subsonic, really what the 300 was made for.I still have yet to get my stamp for that. I doubt I’ll be doing that anytime. Toyed with that fuel filter thing but you know. Time is all
9.5 barrel seems to be what it was made around for suppressor use.
I think I’ll get that 8 ish. I want back pack small. Is the end goal
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Post by: Bear9350 on November 11, 2020, 09:41:29 PM
Post by: TexasRedNeck on November 12, 2020, 07:12:46 AM
https://www.maximdefense.com/product/maxim-cqb-pistol-pdw-brace-for-ar15/
If you want a can, then get the stamp for the can.
8.5 seems to be ideal for the barrel length
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Post by: TexasRedNeck on December 01, 2020, 09:20:31 AM
(https://uploads.tapatalk-cdn.com/20201201/8181c14f70b436c21395791fdc3d0df0.jpg)
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Post by: TexasRedNeck on December 01, 2020, 02:33:18 PM
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Post by: TexasRedNeck on September 06, 2021, 09:16:12 PM
Been eying the Dillon RL1100 lately and since the dies and case feeder plates all interchange, there shouldn’t be much of a wait.
I need to stop loading and do more shooting
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Post by: TexasRedNeck on January 08, 2022, 06:58:23 PM
Also going to keep all 300blk in black mags and 5.56 in tan
(https://uploads.tapatalk-cdn.com/20220108/a2c5b7064f3786e885b42ce5c3710b9b.jpg)
Given the number of glocks I have I was looking at end plates with caliber on them but everyone wants about $15-$19 each. That would get expensive real quick with the number of pistols i have
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Post by: BobbyB on January 12, 2022, 07:12:23 PM
Given the number of glocks I have I was looking at end plates with caliber on them but everyone wants about $15-$19 each. That would get expensive real quick with the number of pistols i have
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That's why there's spray paint or paint pens with stencils.
Post by: JR on January 12, 2022, 09:16:21 PM
Post by: TexasRedNeck on January 17, 2022, 07:43:02 PM
I found some on line from another source months ago, but knowing that someon may need them I confirmed the order.;
If you guys need carbide dies for 300blk let me know. I’ll sell them and ship them for my cost, which is what Dillon charged me delivered, plus whatever it costs to get them to you.
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Post by: JR on January 17, 2022, 09:59:51 PM
Scheels had lots of ammo this weekend. Prices were a little high but getting better. I did snag 500rnds of 223 wolf for $200. Left it up there just in case.
Post by: TexasRedNeck on January 17, 2022, 10:09:14 PM
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Post by: JR on January 17, 2022, 10:45:08 PM