Although it was selected for service by the Federal Bureau of Investigation ( FBI ) in 1989 from the aftermath of the 1986 FBI Miami shootout , the cartridge was later decommissioned ( except by the Hostage Rescue Team and Special Weapons and Tactics Teams ) after their Firearms Training Unit eventually concluded that its recoil was excessive in terms of training for average agents and police officers ' competency of use and qualification , and that the pistols chambered for the cartridge were too large for some small-handed individuals . These issues led to the creation of and following replacement by a shorter version of the 10 mm that exists today as the .40 S&W , and while the 10 mm never attained the mainstream success of this compact variant , there is still an enthusiastic group of supporters and users
1986 FBI Miami shootout
1986 FBI Miami shootout
10mm Auto