I read that the .450 Marlin is a belted cartridge but the .45-70 is rimmed cartridge, but I can't find any information on the dimensions of each cartridge. I was trying to think of a way to make the .45-70 work in a rifle chambered for .450 Marlin. If this was possible, it would make the .450 Marlin more versatile. I'm sure headspacing would be an issue. I was just brainstorming and I thought I would run this through the brain trust on this site.
I want to buy a .450, but it would be nice to be able to run heavy and light loads like .357/.38. What do you think?