I make some sloppy roll crimps that can be pretty snug in the chamber. However, I would worry about the wear on the hinge pin if carrying while open. Tried it once and did not like it at all.

I won't carry loaded, closed, and safety off. My dog is a big part of why, and I like a back up to just muzzle control.

_________
BrentD, (Professor - just for Stan)
=>/

[Linked Image from i.imgur.com]