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The .585 Gehringer is a large-bore wildcat hunting cartridge.


It was designed over a period of several years by Karl Gehringer while as a member of the Australian wrestling team during his time in the Australian Armed Forces.

A CZ 550 rifle chambered in .416 Rigby and fitted with a 24 inch, .577 caliber Tobler barrel of a 1:22 inch twist rate and a 2.8 inch Nyati reamer was used for testing the cartridge.

Design Details[]

It is based on the .585 Nyati. While it retains the bullet diameter, the casing has been lengthened to 3 inches. In addition to that, the rim diameter is reduced to fit into bolt faces that are designed for cartridges similar to the .416 Rigby. Its capacity is 200 grains to case mouth.

The 3.25 inch Bertram brass case is usable as a basis for .585 Gehringer cases.

As with most large-caliber sporting cartridges, it was designed for stopping power on large dangerous game animals at close quarters range. Power is dependent on the weight of the gun and the recoil. Similarly to most 3+" .585 caliber wildcat cartridges, the .585 Gehringer will exceed 2,600 feet per second (790 meters per second) with a 750 grain (48.6 grams) projectile at a muzzle energy of nearly 11,400 foot-pounds of force (15,500 joules). This is roughly about four times as much power as the 7.62×51mm NATO cartridge.

In 2001, 750 grain (48.6 grams) soft-point and FMJ bullets manufactured by Woodleigh were tested to 2,350 feet per second (720 meters per second) as a suitable hunting load for the .585 Gehringer. Geoff McDonald of Woodleigh had also provided a special run of 900 grain (58.3 grams) soft-point projectiles for the test rifle.

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