Ruger Dude
Active Member
Anyone using or have used one of these roll crimpers (see image)? I have been trying to use one to get a decent roll crimp on some 12ga. Lyman sabot slug loads. Most of the roll crimps come out with a bulge that goes completely around the mouth of the shell after crimping see image. The bulge is bad enough that they do not fit in the chamber easily. I have tried turning the crimp head slow , fast, with low pressure and high pressure and I just cannot get that bulge out of it. Other than the bulge it is not to bad of a crimp. Any suggestions on solutions or techniques would be appreciated.