Originally Posted by Big Chevy
Why does RCBS carbide dies for .38spl & .357 mag come in both taper and roll crimp? I bought the part number 18215 group B, but I think I need part number 18212 group B. I just figured it would be a roll crimp because that's what you use for the .38 and .357. Just want to know if I bought the wrong one. if I did I think I will put it up for a giveaway.
The taper crimp die would be useful for plated bullets and other non-cannelured bullets such as soft lead swaged bullets and the like. A separate roll crimp die can had through RCBS for bullets that require a taper crimp. A seperate die will ad to the versatility of you die set. And as an added note, I've found that I get a better crimp when done as an additional step after bullet seating.
those who beat their guns into plowshares, will plow for those who didn't