The .45 Mauser, from what I can find, was also known as the 11mm Mauser, as was used in at least one Mauser "zig-zag" revovler.
As to the Colt, and Remington, cartridges, they didn't need a rim for extraction, as they were rod ejectors. This prevented their use in S&W revovlers.
Beveled rims helped cam the cartridge as sliding (falling) breech blocks were closed on the rounds. Prevented the breech block from catching on the rim.
Bob Wright
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