Chantry Posted January 27 Share Posted January 27 4 hours ago, Chuck Steak said: gotta show my ignorance - is there a benefit to roll crimping or is it just cool looking... ...i do think its cool looking so "cool" is good enough for me Yes, a roll crimp reduces chamber pressure somewhat, somewhere between 500-100 PSI according to what I have read. Using fiber wads and paper/cardboard over powder cards and over shot cards will also reduce pressure. It SEEMS to reduce muzzle velocity as well. Using a published load for smokeless using fiber wads and roll crimps for skeet loads slowed muzzle velocity of the bird shot down enough that I had more misses. Using a short plastic wad, a roll crimp and a slightly heavier powder charge resolved that problem. 1 Quote Link to comment Share on other sites More sharing options...
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