300BlkTalk

Maybe I missed it, didn't see what primer you are using. I am using CCI #41 labeled "for 5.56 ammunition" primers, I had just assumed they should be OK for 300blk as well. The powder is growing on me in a carbine gas system. I really think the answer seems to be 100-110% case fill to get ...

If you have a load that will not cycle, but will lock back on the last round, you have a problem. The carrier has to travel farther to lock than to cycle. Carrier may be dragging on loaded rounds in the magazine, but something is wrong. CFE is being CFE, slightly unpredictable. 2 MOA with subs as a...

I recently finished an 8" upper build using a barrel from Aeroprecision 1:7" twist rate. I believe the Aero barrels are sourced from Ballistic Advantage but im not sure. First range trip did not go well however. 50 yard groups ( longest available in my area) were running 5 inches with 187...

So here we go, my very strange results from the weekend at 50 yards. Extremely poor accuracy has been a recurring theme with this rifle, both handloads and factory. My most accurate subsonic load EVER is the 1.25 MOA load below. I am using a Primary Arms 6x scope. You should probably be able to shoo...

So which is it? Not trying to grind on the subject, but it’s actually important to know what actually solved the issue. Was it more powder? Did you miss something that you corrected in the assembly of the rifle? Did it just need lube? I would expect it to have full function down to at least 10.5 gr...

Update: I stripped the rifle and thoroughly cleaned/lubed. I then went up to 11.5gr Shooter's World Blackout and...it cycled! Finally! I must have been on the edge with 11.0gr in a 8.3" barrel. ...however, as some other forum posts on this powder have mentioned, it left unburnt powder residue a...

Lil'gun will make the problem worse, CFE BLK might be able to mask whatever the actual problem is enough to work. Pull the gas block, make sure there is no leak or blockage. A leak will show up as a carbon track. Make sure the port is centered in a carbon ring and measure it while it's apart. That ...

Just so I’m not confused, You have full function with supers, cycles and load locks back on empty every time. Subs will eject the spent case, but not pick up the next round. Yes, exactly my problem, even at "max loads" to remain subsonic with a powder that seems highly recommended. I was ...

when you say "cycle properly" we need more info. By not cycling properly, I mean it turns my semiauto into a bolt action. It does not feed the next round at all. A lot of things are counter intuitive with subs. Does it cycle at all with those loads? ... If if does not lock back on empty w...

I had simular set up 8.5" and found that changing out a std,carbine buffer for a H 2 buffer gave me complete function with all loads super and sub. Isn't that counterintuitive? I always thought a heavier buffer meant more resistance to recoil and therefore should require more energy to lock ba...