Letter: F
FIXED BREECH
FIRING CYCLE
FIRING CADENCE
NON-FIXED-BARREL FIREARM
FIXED-BARREL FIREARM
FUSED SHOT
Two or more shot pellets joined together during the process of manufacturing or during firing.
FREE BORE
A portion of the chamber, usually cylindrical, forward of the casemouth of a diameter larger than the projectile in which rifling is not present. See Bullet Jump. See Throat.
FRONT SIGHT HOOD
A cover to protect the front sight from damage.
FRANGIBLE PROJECTILE
Originally designed for law enforcement training, frangible ammunition’s projectile is designed to break up upon impact with hardened (e.g. AR500) steel into fragments small enough to prevent injury from ricochet/splash-back at typical practice distances. Ammunition loaded with frangible projectiles is sometimes referred to as “Reduced Hazard.”
