Would the rifling stabilise a 570-grain bullet? IIRC, the .50/110 fired a 300-grain pill.

Thinking of stubby bullets, I once saw an old Sears-Roebuck catalog that showed a Marlin rifle in a cartridge called .45/83. The impression I got was that it was the same as the .45/90 but with a heavier (405gr?) bullet instead of the usual 300-grainer. Any ideas?