So I was trimming a bunch of 6 ARC brass last night. All the brass from my wife's RAR needed trimming as usual. Almost all the brass from my AR was too short to trim save for a few pieces. Full sized sizing die was used for both, Lee for wife's gun and RCBS small base for the AR. Figured I'd ask to see if this could be an indicator of anything out of whack. The AR does run exceptionally dirty with Lever so I'm curious if maybe the brass isn't expanding to seal off the chamber or something.
