17 HMR come with bullets that weigh 15.5 grains (1.00 g), 17 grains (1.1 g), and 20 grains (1.3 g), and come in designs such as plastic-tipped bullets, hollow points, soft points, and FMJs. The terminal ballistics of the lightweight expanding bullets limit the . 17 HMR to small game animals and varmints. .
17 Hornady Magnum Rimfire, commonly known as the .17 HMR, is a rimfire rifle cartridge developed by the ammunition company Hornady in 2002. It was developed by necking down a .22 Magnum case to take a .17 caliber (4.5 mm) projectile. Commonly loaded with a 17 grain (1.1 g) projectile, it can deliver muzzle velocities in excess of 775 m/s (2,650 ft/s).
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