FMJ ammo stands for Full Metal Jacket ammunition. This type of ammo is most commonly used in handguns and rifles, and it is typically made with a lead core surrounded by a copper or brass jacket. This jacket helps to keep the bullet from deforming when it strikes the target, and it also helps to increase accuracy. FMJ ammo is generally considered to be more accurate than other types of ammunition, and it is also less likely to cause damage to your firearm.
Robert Answered question June 29, 2022