.223 primer pocket size problem

[BillPa]

If you look closely you can see the primer is still making almost full contact with the primer pocket

..and if it wasn't for the radius between the top of cup and wall creating a gap for the brass they couldn't be crimped in to start with. Reaming only removes the brass that was pushed into that gap when crimped.

Bill

[Jeremy B]

..and if it wasn't for the radius between the top of cup and wall creating a gap for the brass they couldn't be crimped in to start with. Reaming only removes the brass that was pushed into that gap when crimped.

Bill

But the only ammo I find that is crimped is 5.56 mil-spec as they don't want a loose primer causing major problems on the battlefield and the SAW chamber has been reported to have looser tolerances than the M16. Dryflash3 on the ar15.com reloading forum has a nice drill mounted reamer for removing the crimp but I still use my press mounted RCBS tool http://www.midwayusa.com/product/235...swager-combo-2