If the questions is referring to the tube, then only one.
Typically, 38-40.
The M252 81mm mortar team typically consists of a crew of four soldiers. This team includes a squad leader, gunner, assistant gunner, and ammunition bearer. Each member has specific roles to ensure effective operation, maintenance, and firing of the mortar system. This crew structure is designed to optimize coordination and efficiency during mortar operations.
Need to know the model and claiber.
Four of each except in the 03 Springfield. I believe they had two.
Among others. Smith & Wesson uses 6/6 in many of their guns.
150 grooves
a quarter has 130 grooves.
A quarter has 119 grooves, or reeds. The grooves are used as an anti-counterfeiting strategy.
59
There are no "grooves" on a British 1 Penny coin. The edge is not milled.
According to the U.S. Mint, a dime has 118 reeds (grooves).
According to the U.S. Mint, a dime has 118 reeds (grooves).