Ruger MKII + .22LR
S&W J-frame + .38 Spl.
Makarov + 9mm
Colt M1911A + .45 ACP
Colt SAA + .45 Colt
Browning Baby Auto + .25
Etc. (Just sayin'; it takes a well-liked combination to make the bullet worth having -- like the Webley and Walter Mitty, for instance)
Makarov Pistol is incompatible with 9mm Para, it uses proprietary cartridge of intermediate between 380ACP and 9mm power.