.17 Winchester Super Magnum
|17 Winchester Super Magnum|
|Place of origin||United States|
|Parent case||.27 caliber nail gun blank|
|Bullet diameter||.172 in (4.4 mm)|
|Case length||1.200 in (30.5 mm)|
.17 Winchester Super Magnum, is a rimfire rifle cartridge developed by the ammunition company Winchester in 2012. It descended from the .27 caliber nail gun blank by necking down the blank case to take a .17 caliber (4.5 mm) bullet. Initial loadings will be a 20 grain bullet, delivering muzzle velocities around 3000 ft/s .
Factory ammunition is available from Winchester, Federal American Eagle, and more recently Hornady.
Hornady 17 Win Super Mag and Federal Ammunition American Eagle® 17 Win. Super Magnum cartridges are currently only available with 20 grain polymer-tipped projectiles rated @3000 FPS at the muzzle.
Several options from Winchester are available, including Varmint HV 17 Winchester Super Magnum with a 20 grain polymer-tipped projectile rated at 3000 FPS, Varmint HE 17 Winchester Super Magnum with a 25 grain polymer-tipped projectile rated at 2600 fps, and Super-X 17 Winchester Super Magnum which is available with a 20 grain JHP projectile, also rated at 3000 FPS.
Currently, rifles firing the 17 WSM are the Savage B-Mag bolt action, heavy barrel B-mag Target edition. Ruger Model 77/17, Winchester 1885 Low Wall single shot, the Volquartsen semi-automatic, H-S Precision Pro Series 2000, and the semi-automatic Franklin Armory F-17. The F-17 is the first gas-operated rimfire firearm, designed to handle the higher pressures of this cartridge. Also recently Jard Inc. joined this list with their J71 17 WSM AR 15 rifle. 
- "The 17 Winchester Super Magnum". Retrieved 2013-01-23.
- "Savage .17 Winchester Super Magnum Rimfire Rifle – SHOT Show 2013". Retrieved 2013-01-23.
- "World's Fastest Rimfire Round: Winchester .17 Super Magnum". Retrieved 2013-01-23.
- "First Ever Functional Gas Operated Rimfire from Franklin Armory". Retrieved 2014-01-21.