I was just looking at cda926's thread about his .41 Army Special and got to wondering about something. Since the .40 S&W is so close to the .38-40, would a rimmed version for sixguns make sense? I never think about such things preferring old calibers that already exists, but I got to thinking about this looking at that .41 Colt. This just popped into my head so I won't be surprised if there's already a cartridge I'm forgetting that is close to this already (besides the .38-40). But a non magnum with a bigger bullet than .357 in a case more modern than .38-40 might be interesting, but maybe a long jump into the barrel like .45 ACP in a SAA.