I load these for a 45 ACP revolver. I use a profile crimp die that crimps the case mouth into that shallow groove. They seem to work OK for that. The reason I use those and not the regular 45 ACP bullet is my revolver pulls the bullets and it locks up my cylinder. I don't shoot these in my 1911 but they would probably work there also. I've read that RCBS used a roll crimp die for 45 ACP in the 80's but I have no personal knowledge of that.
https://missouribullet.com/details.p...y=13&keywords=