PositiveCaster,
I don't seat the #452424 to crimp over the front driving band, I seat in the crimping groove.
That works just fine in S&W M25-5, and all Rugers. Too long for Colt SAA's & clones.
For them I load the #452423 or N.O.E. equivalent.
When I actually do load a SWC in .45Colt.