There are some rounds that are well known that have been run on the 1911 platform, but did you know that there were others?
.38 Special wad cutter
.38/45 (a .45ACP casing necked down to accept .357 bullets)
This list is not complete, but just "food for thought"
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)