260 Rem popping primers on factory ammo

[rainman]

Extra length in the chamber means there is nothing to back up the primer, it blows out the rear.

Thank you Constructor.


-Rainman

[Pappabear]

JWF, are we talking bolt gun or AR10? Gas guns can use the BRT tubes to make the guns less violent in recoil and extraction. Bolt gun is a whole Nuther story.

PB

[Send it...]

I had the same primer issue in one of my AR 10 platforms. I solved my issue by changing the bcg to a KAK BCG and used a JP high pressure bolt. I also switched to a heavy buffers from Heavy Buffers.com.

It seemed to me to slow the process down and allow pressure to subside before the extraction and ejection process. Now, it runs any ammo, factory or hand load. I hope you get yours sorted out my friend.