Properly written as .10 caliber (notice the decimal ?) a .10 caliber firearm would fire a VERY tiny bullet- 1/10th of an inch in diameter- less than half the size of a .22 caliber. However, since very few firms have ever made a cartridge that tiny, you MAY be referring to a 10 GAUGE shotgun- which is VERY large- about 3/4ths of an inch in diameter. With shotguns, the smaller the gauge, the bigger the shell.
Most BB are .177 caliber but there are a few that are .175 caliber.
about 40 caliber and above :)
High Caliber was created on 2002-10-22.
They are .175 caliber
9
Big bore rifles are generally considered to be 40 caliber and above.
No. He was shot by a 9mm.
A 410 shotgun is basically a 41 caliber smoothbore. A 45 caliber round may fit in the chamber, but the bullet is too big. Don't do it.
In the usual sense of caliber, it means the diameter of the bullet. The smallest commercial caliber is the .17 rimfire, but there have been MUCH smaller caliber firearms, down to the 1-2 mm range. That is about .05 to .10 caliber.
Any bullet that has a diameter of one half inch is a .50 caliber bullet. There are different .50 caliber bullets- my Hawken muzzle loading rifle shoots a .50 caliber lead bullet, but different from the .50 Browning Machine Gun (that is also used in the .50 Barret sniper rifle)
10 gauge
We assume you mean .300 caliber. That is 30/100ths of an inch. A bit smaller than the diameter of a regular pencil.