6.5 Creedmoor small or regular primer pockets?

[jbs2014]

Do you all that shoot ARs in 6.5 Creedmoor use the brass that has the regular or small primer pockets? If you use the small primer pockets will the Federal AR Match primers work ok?

What does the small primer pocket brass do that the regular does not?

Thank you

 

[Dmagna]

I wouldn't bother with the small pockets unless you are really shooting for precision. I use the small rifle magnum cci 450, the brass with the small primers can take more pressure imo. But with the AR I would just go with large pockets.

 

[jasonco]

Large pocket. Had the the dreaded primer piercing with the standard bolt.