Ключевые слова: ball, barrel, bullet, cap, cartridge, case, combination, components, copper, crack, defense, diminutive, effectively, expelled, fast, fire, firearm, gun, gun barrel, gunpowder, heavier, hunting, impact, kill, lead, loading, materials, metallic, metals, military, muzzle, penetrate, penetration, pressure, projectile, risk, shell, shooting gun, shot, small, sonic, subsonic, substantial, supersonic, target, target shooting, training, velocity, warfare, weapon,