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Mdwysc wrote:It's mill spec ammo and not my cup of tea.

Spooky...them being used for CSR and all

Nothing wrong with GGG cases if they are prepared properly.

I was told (don't know how true it is) that the proof house use ggg cases in there proof loads?

thanks for all the help guys, it was the primer pockets , I managed to get a Dillon primer swage tool and all is well now :) I use a SGC Lever Release AR and GGG are recommended , and to be honest the gun seems to like them, tried some ex Russian stuff in it and it hated it !!

R4CER
Glad you got it sorted I have to do the same with S&B 9mm brass as S&B primers are smaller than CCI.