Tonight i was at my bench and made up a batch of stout .44-40 +P ammo with Hornady XTP jacketed bullets for use on bigger critters in my Miroku 1992.
I normally use a roll crimp on my cast loads but for these jacketed loads i gave the Lee collet style FCD a go and i really liked how well the crimp fit into the cannelure on the XTP's.
That got me thinking, if a cast bullet had a wider but shallower crimp groove that better matched how the Lee FCD crimps would it be any better or worse than the traditional crimp groove?
I've tried the Lee FCD (collet style) on my cast loads and never liked the way it "swaged" some bullets down but if the bullet was designed with the FCD in mind would that problem be eliminated?