For decades the FBI claimed the .40 Smith & Wesson was the optimal personal defense round. But the 9mm versus .40S&W battle rages on. (Photo by FBI) Defensive caliber arguments have been going on ...

The term handgun “stopping power” generally relates various opinions about the ability of handguns to create ballistic wounds sufficient to incapacitate a target. Using muzzle velocity, caliber, ...

There are several variants of the heavy-hitting .50 caliber round, used by the U.S. military in M2 machine guns and M107 sniper rifles. The .50 caliber M8 armor-piercing bullet has an aluminum color ...

Given recent changes in NIJ ballistic standards, and a sometimes convoluted explanation of how body armor works, this brief article is provided to explain the levels of protection for ...