AJ
US Veteran
I had a Rem UMC marked 45 colt that was shorter and probably designed for use in the S&W. It would also work in the Colt. Colt never really loaded a commercially loaded short colt so it's still called 45 Colt!
Colt didn't load any ammo.
"Short Colt" would probably be a Schofield as in .45 Schofield used in S&W's. You have .45 Colt and .45 Schofield, not .45 "Long" Colt or .45 "Short" Colt.