A SIMPLE KEY FOR IMR 3031 POWDER USES UNVEILED

this can be a compressed billed (nearly anything about 25gr with 3031 in the 223 Rem scenario might be a compressed charge) and wishes to possess a slight crimp in it. I have shot these loads crimped and un-crimped and the crimped shot much better than the un-crimped for some explanation. I guess some folks have even though. I've normally puzzled