.600 Overkill

Last updated

.600 Overkill
Type Hunting, rifle
Place of origin United States
Production history
DesignerRobert Garnick
Designed2000 [1]
Specifications
Parent caseNone
Case typeBelted, straight
Bullet diameter15.7 mm (0.62 in)
Neck diameter16.4 mm (0.65 in)
Shoulder diameter16.4 mm (0.65 in)
Base diameter16.7 mm (0.66 in)
Rim diameter16.3 mm (0.64 in)
Rim thickness1.5 mm (0.059 in)
Case length76 mm (3.0 in)
Overall length93 mm (3.7 in)
Case capacity196.6 cm3 (3,034  gr H2O)
Primer typeMagnum large rifle
Ballistic performance
Bullet mass/typeVelocityEnergy
1,000 gr (65 g) FMJ2,500 ft/s (747 m/s)13,877 ft⋅lbf (18,814 J)
1,000 gr (65 g) Solid brass3,000 ft/s (914.4 m/s)19,982 ft lbs (27,092 J)
Source(s): 470MBogo [2]

The .600 Overkill is a hunting cartridge designed to fit the CZ-550 action, by American Hunting Rifles.

Design

The .600 Overkill was designed by Robert Garnick of Las Vegas, Nevada in 2000. The case is a custom, with a belt, .683 in (17.35 mm), added for headspacing and the rim to fit that of the .505 Gibbs .640 in-(16.26 mm) size, bolt face.

This cartridge was intended to fire the largest bullet able to fit in the CZ-550, [2] and was designed specifically for the purpose of killing an elephant. The CZ-550 can fit two cartridges, with slight alterations. The .600 Overkill fires a 900-grain (58 g) bullet at more than 2,400 ft/s (730 m/s),

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References

  1. Cary, D. (2020, August 29). 600 overkill? anyone.. AfricaHunting.com. https://www.africahunting.com/threads/600-overkill-anyone.57753/page-2
  2. 1 2 McCarthy, Daniel. "Mini Compendium of Big Bore Cartridges". 470Mbogo.com. Archived from the original on 1 September 2010. Retrieved 4 September 2010.