.600 Overkill
The .600 Overkill is a hunting cartridge designed to fit the CZ-550 action, by American Hunting Rifles.
| .600 Overkill | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Hunting, rifle | |||||||||||
| Place of origin | United States | |||||||||||
| Production history | ||||||||||||
| Designer | Robert Garnick | |||||||||||
| Designed | 2000[1] | |||||||||||
| Specifications | ||||||||||||
| Parent case | None | |||||||||||
| Case type | Belted, straight | |||||||||||
| Bullet diameter | .620 in (15.7 mm) | |||||||||||
| Neck diameter | .646 in (16.4 mm) | |||||||||||
| Shoulder diameter | .646 in (16.4 mm) | |||||||||||
| Base diameter | .656 in (16.7 mm) | |||||||||||
| Rim diameter | .640 in (16.3 mm) | |||||||||||
| Rim thickness | .060 in (1.5 mm) | |||||||||||
| Case length | 3.00 in (76 mm) | |||||||||||
| Overall length | 3.65 in (93 mm) | |||||||||||
| Case capacity | 196.6 gr H2O (12.74 cm3) | |||||||||||
| Primer type | Magnum large rifle | |||||||||||
| Ballistic performance | ||||||||||||
| ||||||||||||
| Source(s): 470MBogo[2] | ||||||||||||
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),
References
- Cary, D. (2020, August 29). 600 overkill? anyone.. AfricaHunting.com. https://www.africahunting.com/threads/600-overkill-anyone.57753/page-2
- McCarthy, Daniel. "Mini Compendium of Big Bore Cartridges". 470Mbogo.com. Archived from the original on 1 September 2010. Retrieved 4 September 2010.
- Templar, Stephen W (2008). Rexgun. Morgan Templar. p. 106. ISBN 978-0-615-22413-8.
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