In November 2003 Sturm, Ruger & Co. announced that it would introduce five different rifles chambered for a new cartridge, the 204 Ruger, which was developed in conjunction with Hornady Manufacturing. The 204 Ruger would share the same overall length of 223 Remington ammunition, but with greater case volume. The purpose was to deliver the same stopping power for varmint or small game with less recoil, muzzle report, and barrel wear than similar high-velocity rounds such as 22-250 Remington and 220 Swift. Ruger claimed higher velocity and flatter trajectory would be achieved while burning less propellant, a major source of barrel wear. In this evaluation we will test three bolt-action rifles chambered for 204 Ruger, including Ruger's $935 KM77VT MKII, the $1224 Kimber 84M Varmint, and the $1208 Model 12 Long Range Precision Repeating rifle from Savage Arms. Each of our test guns was designed with the varmint hunter in mind. Perhaps the most popular game in this category would be the prairie dog. Prairie dogs live in 'towns,' and they are likely to stick their heads up or run from one mound to another at any time. Opportunities to take a shot are oftentimes so plentiful that the rifles are challenged to maintain accuracy and function despite high operating temperatures. Some rifle tests only require a three-shot group, but in this case we felt justified to test for accuracy over the course of five five-shot groups.
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