I am finally gonna do it. I am going to try and make the 45-75 bottleneck from 50 Alaskan. As far as I know, after much research, it seems as easy as running it through the dies and trimming to length. There's conflicting info on case dimensions... and I might have to reduce the case rim diameter a couple thou and it's thickness as well.
Obviously I'd like to buy a metal lathe for this... but one of the guys on another forum said you can just chuck the brass up in a drill press, and do some minor surgery that way.
Any of you guys ever do it that way? Any info from anyone who's tried this would be sincerely appreciated!
Hope you all are staying safe and surviving these idiotic lock downs...
Guy