Energy have to be transferred in to target, otherwise its useless. lbfġ0mm is a pistol round that has a low muzzle velocity, 5mm is a fictional rifle round that supposedly replaced 5.56x45mm NATO so I would imagine it would have superior performance.Įnergy alone is as useless as diameter alone in determining its effect on target.Real 10mm AUTO has a muzzle energy of around 750ft The diameter of the projectile has little to do with how powerful the round is.
