I just picked up a what looks like a never fired 1866 24" yellowboy in 45 colt. I cast for handguns and have a 200gr lyman 452460 mold and a NOE 453-238-SWC. Well, I went through about a dozen dummy rounds and couldn't get them to load. I could get them drop into the barrel and eject but not initially load.
I looked at some factory 250gr colt rounds I have I appears the crimp is significant. I may not be crimping enough, I can't really tell. The lyman 452460 seems like a smaller bullet and does not seem to want to load less than 1.60. Any passed that it there's no spot for the crimp to dig into. The NOE 238gr has plenty but still coulnt get that to work.
I have the RCBS cowboy set of dies. It seats and roll crimps together which I don't like and might get a separate crimp die. That should be a roll crimp correct, not a taper?