Foot-Pounds of Energy (FPE)

A measurement of a bullet’s kinetic energy at impact, indicating stopping power for hunting.

The internal diameter of a firearm’s barrel or the bullet’s diameter (e.g., .223, .308).

A bullet design featuring a cavity in the tip for controlled expansion, increasing its effectiven...

A more powerful ammunition load with extra powder, yielding higher velocities and energy for larg...

The kinetic energy of a projectile at the instant it leaves the barrel; higher muzzle energy ofte...

The ratio of a bullet’s weight to its cross-sectional area; higher sectional density often transl...