300BlkTalk

Thread pattern isn't important, bore size is. You need a .308 muzzle device threaded to match your barrels thread pattern. I would not use an adapter.

As long as your muzzle device has a hole larger than .308 for the bullet to pass through, you are fine.

How far up does the buffer retainer stick up into the end on the tube...compared to the lower that works?

ok, sounds like a bad BCG...does the groove on the bottom of the BCG run the full length, or did it get "short machined"?

Does the BCG go all the way back without a magazine in the rifle?

Rockingj wrote: ↑

Sun Jul 05, 2020 1:16 pm

golfindia wrote: ↑

Sun Jul 05, 2020 9:18 am

Too many shells in your clip .....

30 rounds in a 30 round magazine is too many?
...

Yes, 30 rounds of 300BLK in a Magpul 30 rnd magazine designed for the 5.56 round IS TOO MANY.

As mentioned in that thread, the only time most reloaders would flare rifle brass is for cast bullets. Typically chamfer/deburr will allow copper bullets to seat without issue. Now, if you are using a Mr. Bullet feeder on a progressive press, this may not be the case, but you should follow the instr...

Load the same magazine with .223 rounds...note the vertical ribs near the front in relation to the bullet. Now load the magazine with 300blk rounds...see the issue with the vertical ribs on the bullet? On a full mag, that changes the height of the stack of bullets.

My 10.5 psa runs like a clock. if you don't reload - START, if you do reload - UPGRADE your press. You gonna need more ammo.

I like to plink with 125gr Speer TNTs...they shoot great out of my 7" as well as 16" barrels. Sig Sauer makes a 125gr round that works extremely well, but I can load my own far cheaper.