Minimum caliber varies with the country you plan to hunt elephant in.
fixdeluxe1's Improvements:
I reccomend,if legal in the state,province,country,jurisdiction,planet galaxy or otherwise(I am only curios to find out what aliens would hunt with)anything higher than .500 S&W.Maybe .50BMG(With a Barret M85) or .585 Cartridges.They are becoming rarer and more expensive by the day,So get in quick.
Elephant gun.
the 12 guage is a caliber not a gun
a .45 caliber.
What caliber of man are you looking for? What caliber of gun are you looking for?
With a pink elephant gun.
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.
Caliber "Caliber" is a word for the diameter of the bullet or the bore of the gun.
Fifty caliber, but it is more of a toy than a paintball gun.
45 caliber Machine Gun and 50 caliber machine gun