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    300 BLK cycling problem *INFO UPDATE*

    Re: 300 BLK cycling problem *INFO UPDATE* The collapsable stock and buffer was off of another 5.56 AR that I put an A1 stock on. I had it available, so I used it. This buffer setup works in all my other 5.56 guns, no feed or cycling problems noted. I've never fired factory ammo through the...
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    300 BLK cycling problem *INFO UPDATE*

    I took my 300 BLK AR out yesterday to do some load testing. These were the first rounds out of this gun. The gun: 16 Wilson Combat barrel, .106 dia. gas port Carbine gas setup Carbine buffer with weights remover and filled with #7 shot. (works very well in 5.56) The Loads tested: 18.0 gr H110...
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    223 neck tension

    Re: 223 neck tension We made up 6 dummy rounds from scratch. We also sized some trimmed cases using the Lyman sizer die and the Lyman expander ball left the case neck ID at .213. And we were still able to push the bullets in. They slide in smoothly, almost like they were lubed. Maybe we...
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    223 neck tension

    My friend is Loading 52 gr flatbase hollowpoints and the bullets can be pushed into the case with very little pressure pressing against the benchtop. The specs: Once fired mil 5.56 brass. Case mouth ID is .215 after trimming with a Dillon case trimmer. Bullets measure .224. Standard Lyman .223...
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    300 Blackout questions for RSilvers

    Re: 300 Blackout questions for RSilvers Thank you for the info. I'm looking forward to getting this build done. This cartridge is just what I've been looking for in the AR platform.
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    300 Blackout questions for RSilvers

    What is the correct gas port size for a 16 inch carbine gas barrel? I'm only going to be shooting 130 gr to 168 gr bullets in supersonic loads only as VT doesn't allow suppressors (yet). Also, is WIN 748 too fast for the 300BLK and the above listed bullet weights? I ask as it is a powder used...
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    Fabricating An AR Flash hider

    Well, I've ordered my 300 BLK barrel and I want to put a early FAL style slotted type flash hider on it. Inch pattern FAL flash hiders are tapped 9/16 X 24, and are too thin to ream out and re-tap.Since the barrel is threaded 5/8 X 24 it looks like I need to fabricate one. A friend of mine has...
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    Bullet weight in 300 BLK

    Is there any Info on how the 300 BLK runs with regular 150/168 grain bullets and/or 30 cal AP bullets in a 16 inch bbl with carbine gas? I have buckets of each and would like to be able to use them in this application. I'm not worried about subsonic performance as I live in VT and we're not...
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    300 Blackout Mag question

    Re: 300 Blackout Mag question www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2339681
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    300 Blackout Mag question

    While doing research on this cartridge, I came across a thread on the forum that mentioned that using this ctg. in PMags required filing on the front ribs due to the bullet being in contact with the rib and causing chambering issues. One of the reasons I'm interested in this round is the...