Roll Crimping

[Cory Rams]

I don’t have the shells with me to measure but I would say there is a little less than a half inch of Measurement on the fold crimp. I was pondering the same question on how much is too much. I’m guessing it makes no difference in patterning. I can tell you it makes zero difference in fitting into my SxS. My loaded shell is still over a half inch short of my 2 & 7/8” chamber length. I could have trimmed my shell down further to have less so my Extra hull length would be closer to the lead shot payload but figured I’d try it like this and give it a try. I would guess if loading in something other than a SxS or single shot there could be cycling issues because the crimp is out far enough that it’s not supported by the payload of lead shot. I’m curious myself so that’s a good question. I have seen slugs with a lot deeper roll crimps then my loads. I would say it might increase the pressure a little? My powder charge is less than than a square load and loaded with FG so I’m not worried about a pressure spike. Hopefully someone will chime in and let me know if I did something wrong.