Short Case .45 Colt

I have a .45 Colt round headstamped “REM-UMC 45 COLT” with a 1.110" case length as opposed to the usual 1.275". What is the proper name for this cartridge, and why was it made?? Thanks in advance for any info.

I think that you have a 45 Colt Government.It is a bastardized cartridge between the standard 45 Colt and the 45 S&W schofield.
It retains the rim diameter of the Colt round with the lenght of the S&W one


See my answer on the other thread.

Pivi is right.

These two threads probably should be combined but then we’d be off on another lengthy discussion of the 45 Long vs. 45 Short cartridges and it’s already been covered - maybe too much.