As if Lethal Weapon 3 and the "teflon coated cop killer bullets" bullshit wasn't enough for you to swear off the franchise forever...
The real reason the actual KTW armor piercing bullets were coated with Teflon is because the bullets were annealed brass, and firing them in a regular pistol barrel without some kind of anti-friction coating would fuck up the barrel. The Teflon coating is gliding material, and does nothing to aid penetration at all.
As if Lethal Weapon 3 and the "teflon coated cop killer bullets" bullshit wasn't enough for you to swear off the franchise forever...
The real reason the actual KTW armor piercing bullets were coated with Teflon is because the bullets were hardened steel, and firing them in a regular pistol barrel without some kind of anti-friction coating would fuck up the barrel. The Teflon coating is gliding material, and does nothing to aid penetration at all.