Armory Sponsor
Posted: 9/16/2010 4:25:12 PM EDT
|
I've been having an intermittent issue with my AR-15 SBR. Sometimes I have been getting primers popping out of cases and causing problems. Usually they are getting into the locking lugs and jamming up the gun. 7" DPMS Kitty Kat upper H-Buffer I have had problems with Prvi Partizan and American Eagle XM193. Any ideas to help me out? |
|
Quoted: Is your barrel marked .223 or 5.56mm? There have been reports of Bushmaster rifles with .223 spec chambers having problems similar to yours. I'll have to do some dis-assembly to check. It's supposedly a 5.56 chamber. I don't have any issues running this ammo in my 16" guns. Would the weight of the buffer have any effect? |
| Should be stamped on the bottom of the barel. I have a SBR with a KK barrel and OPS M4S and have had some Partisan ammo drop primers. Had a few stuck wolf cases, too. Mine is stamped to have a 5.56 chamber but I still think I am gonna get it gauged to be sure. I am still trying to get done with breaking it all in and running reliably. Your H buffer should not be the cause of the primer drop but you may want to consider a heavier bufferif you run into FTE or FTF issues. |
|
Quoted:
I've been having an intermittent issue with my AR-15 SBR. Sometimes I have been getting primers popping out of cases and causing problems. Usually they are getting into the locking lugs and jamming up the gun. 7" DPMS Kitty Kat upper H-Buffer I have had problems with Prvi Partizan and American Eagle XM193. Any ideas to help me out? I don't know if this will solve your problem but our PD got some Bushmaster select fire M4s in that were having the same problem that you described. It wasn't the ammo. The rifle chambers were not 5.56 spec when checked with a gauge. They were .223 chambers that had to be reamed to spec. The rifles were marked 5.56 but that was about it. |
Armory Sponsor