Here's another good tool for sorting brass. I seperate all case mouths in piles of .001 and less, .001-.002, If it's good brass I can the rest. If it's not so good brass I run another pile up to .003. THe other steps Russ mentioned are good. I bought some Remington 300 RUM brass and it is crap. I guess I got spoiled on Norma and Lapua but I'll get this to work. It's just back to basics and more prep time. But it's still crap!