Rimfire and centerfire show up in gun shop and range talk, but their names hide a simple idea: where the firing pin strikes the cartridge. In a rimfire round the primer is inside the rim, so the gun ...

Throughout the 1800s, firearm development was cartridge development. Engineers, inventors, gunsmiths, and crackpots tried various ways to speed reloads by integrating fulminate primer, powder, and ...

In America, speed is most often thought of in terms of miles per hour (mph). But when answering the question of how fast does a bullet travel, it’s best to think of speed in feet per second (fps).