Stopping Power

Homeland Security agents use three types of handguns, each one loved by those who carry it and criticized by those who don't.

Duty Pistol Who uses it Speed of shot
(Feet per second from muzzle)
Human Tissue
Penetration from 15 feet* (inches)
9 mm Veteran Customs agents (ICE), Customs inspectors (CBP), U.S. Coast Guard 1113.67 12.83
.40-caliber S&W Veteran INS agents (ICE), Customs inspectors (CBP), U.S. Border Patrol 1163.2 9.886
.357-caliber Sig Federal air marshals (ICE), U.S. Secret Service, Federal Protective Service (ICE) 1298 14.7

*Penetration reflects shot fired into 10% Gelatin Solution

Source: Bureau of Immigration and Customs Enforcement