It was 44 cal, 1860 colt army Richards conversion.
45 colt
the 12 guage is a caliber not a gun
A handgun. Some European pistols were .32 caliber, and would have been the smallest used, but many .22 caliber rifles were used in training.
a .45 caliber.
What caliber of man are you looking for? What caliber of gun are you looking for?
The short answer is no. The longer answer is, you might be able to get a .40 caliber cartridge to fire from a .45 caliber gun, but it may damage the gun, and even if it doesn't damage the gun, it will cause other problems. In general (with only a few exceptions) you should never try to fire any cartridge in any gun other than a gun designed for that caliber.
It is the standard .68 caliber
Caliber has nothing to do with it.
smaller the number, the smaller the caliber.
The word "caliber" refers to the diameter of the internal bore of a gun or firearm barrel.
45 caliber Machine Gun and 50 caliber machine gun
Fifty caliber, but it is more of a toy than a paintball gun.