5.7x28mm ammunition currently available to military and police units includes the standard, SS190 armor-piercing, duty load, the SB193 subsonic load, with a white-tipped, 60.2-grain (formerly 55-grain), full-metal-jacket, boattail bullet at 984 feet per second muzzle velocity, and the SS198LF (Lead-Free) round, which is exactly like the SS195LF ...