Max OAL for a .357 mag is 1.590". Using a 158grain SWC bullet. If I crimp the case at (A in jpg) OAL is 1.600"-1.610". If I crimp the case at (B in jpg) OAL is 1.590". Crimped at "A" the cylinder will still rotate without rubbing. I have several hundred rounds crimped at "A". I know several guys...
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