.50 Peacekeeper

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.50 Peacekeeper
TypeCenterfire rifle
Place of originUnited States
Production history
DesignerJ.D. Jones
Parent case.460 Weatherby Magnum
Case typeBelted, bottleneck
Bullet diameter.510 in (13.0 mm)
Base diameter.582 in (14.8 mm)
Rim diameter.603 in (15.3 mm)
Rim thickness.059 in (1.5 mm)
Case length2.913 in (74.0 mm)
Primer typeLarge rifle magnum
Ballistic performance
Bullet mass/type Velocity Energy
647 gr (42 g) Speer FMJ BT 2,400 ft/s (730 m/s) 8,274 ft⋅lbf (11,218 J)
Source(s): "Ballistics for .50 Peacekeeper". Airborne Combat Engineer. May 11, 2005.

The .50 Peacekeeper is a wildcat rifle cartridge that was designed by J.D. Jones of SSK Industries. It uses a .460 Weatherby Magnum case that has been re-sized to accept a .510 in (13.0 mm) diameter bullet.

The .50 Peacekeeper is usually loaded with bullets that weigh in the range of 650 to 750 gr (42 to 49 g), and with muzzle velocities that range from 2,200 to 2,400 feet per second (670 to 730 m/s). A 750 gr (49 g) bullet fired at 2,205 ft/s (672 m/s) carries roughly 8,100 ft⋅lbf (11,000 J) of energy. Recoil in a 12 to 15 lb (5.4 to 6.8 kg) rifle is slightly less than that of a 30 lb (14 kg) rifle chambered in .50 BMG.[1]

See also[edit]


  1. ^ ".50 Caliber". SSK Industries. Archived from the original on 2011-02-20. Retrieved 2011-04-25.