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A wildcat cartridge, often shortened to wildcat, is a custom-made cartridge for which ammunition and/or firearms are not mass-produced. These cartridges are often created as experimental variants to optimize a certain ballistic performance characteristic (such as the power, size, or efficiency) of an existing commercial cartridge, or may merely ...
Soon after the introduction of the 6.5×47mm Lapua, shooters were using the case as the basis for a new wildcat, by necking it down to 6 mm. This wildcat cartridge is often called a 6-6.5×47 [16] to avoid confusing it with the 6×47 Swiss Match, [17] a similar case but with a large rifle primer. The 6.5×47mm Lapua Ackley Improved is a ...
P.O. Ackley was a notable gunsmith famous for developing wildcat cartridges from parent cartridges like the 30-06 Springfield. For many of the wildcats listed above, and several of standardized commercial chamberings based on the 30-06 cartridge, there are "Ackley Improved" versions with sharper shoulders increasing case capacity. [ 25 ]
The 6.5mm Creedmoor is known for its exceptional accuracy and long-range performance. According to Gunners' Review, this ammunition is often regarded as a secret weapon for precision shooters due to its impressive ballistic properties. [11] The 6.5mm Creedmoor is a medium-power cartridge comparable to the .260 Remington [12] and 6.5×47mm Lapua ...
The 6.5-284 has been used extensively in benchrest competitions and is known as an extremely accurate long range round. Using an improved version of the 6.5-284, Rich DeSimone set a 1,000-yard (914.4 m) world record with a 1.564-inch (39.73 mm) group. [ 4 ]
This category includes wildcat cartridges as well as cartridges created as wildcats that were later produced commercially. ... 5 mm/35 SMc; 6 mm XC; 6.5-06 A-Square ...
Bottlenecked high velocity PDW cartridge designed by Heckler & Koch in conjunction with the Heckler & Koch MP7 personal defense weapon. 5 mm Remington Rimfire Magnum: 1970 [3] US 0 [3] R 5×26mm 2100 [3] 327 0.311 0.205 [3] 26mm Obsolete. [3] Rimfire. 5.45×18mm: 1973 USSR 1 H 5.45×18mm 1000 94 0.222 18mm Developed for PSM pistol. 5.45×39mm ...
A wildcat cartridge based on the .25 WSSM, called the .358 WSSM or .358 BFG, has similar performance to the standard .358 Winchester and .35 Whelen. [6] Additionally, Olympic arms created the .300 OSSM, which is a 25 WSSM necked up to .308” giving performance between 30-06 and .300 Winchester Magnum. [citation needed]