Roll Crimp vs Fold Crimp

[J. Scott Hanes]

Originally Posted by Rick Roemer

In the last six months or so I’ve gotten heavily into roll crimping. Lots of good advice given from members on this site and some trial and error have yielded what I consider pretty good results. If you want advice on it, feel free to reach out. I’ve had the loads tested alongside regular crimp loads and find they do have lower pressures.

What differences, if any, do you see in the patterns they produce. When roll crimps were the norm many decades ago, the manufacturers touted the move to crimping to prevent "blown" patterns. Any truth to that in your experience?