Roll Crimping

[Cory Rams]

No wad used. My roll crimp is folded all thr way down to the OS card.


I just lightly brush the outer edge where the OS card and roll crimp meet to waterproof them. Then I brush an extremely light coat over the center of the OS card to completely seal it. Figure it will help keeping moisture and rain out if the weather doesn’t cooperate out in the turkey woods. Never tested it in wet conditions yet but used my #6 loads brushed the same way to collect a double bearded Gobbler last year. I didn’t seal them all the way to the top of hull if that’s what you were asking. I think the flash of my camera made the inside of my hull crimps look shiny. Photo without the flash still looks a bit shiny….



I used a little vaseline in roll pin crimper. Could be shiny yet from the lube even though I wiped it out, and, or, the hull might have shined up from the friction from the crimp process im guessing.

[Fishrising (Ben)]

Originally Posted by Cory Rams

I just lightly brush the outer edge where the OS card and roll crimp meet to waterproof them. Then I brush an extremely light coat over the center of the OS card to completely seal it. Figure it will help keeping moisture and rain out if the weather doesn’t cooperate out in the turkey woods. Never tested it in wet conditions yet but used my #6 loads brushed the same way to collect a double bearded Gobbler last year. I didn’t seal them all the way to the top of hull if that’s what you were asking. I think the flash of my camera made the inside of my hull crimps look shiny. Photo without the flash still looks a bit shiny….



I used a little vaseline in roll pin crimper. Could be shiny yet from the lube even though I wiped it out, and, or, the hull might have shined up from the friction from the crimp process im guessing.

This is by no means a critique, but rather an honest question(s): how much distance is between the finished top of your hull wall where the crimp rolls to the OS card? And is that much of a gap OK? Any performance issue? Or does that mean rather you should be adding filler to minimizes that gap? Again, honest question, because of that gap is OK, then why would I bother with a filler?

[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.