.17 WSM

.17 WSM Cartridge

.17 WSM Ballistics tables

Cartridges

.17 Winchester Super Magnum
Type	Rifle
Country of Origin	U.S.A.
Specifications
Parent Case	.27 caliber nail gun blank
Bullet Ø	.172 in (4.4 mm)
Neck Ø
Base Ø
Rim Ø
Case Length	1.200 in (30.5 mm)
Full Length
Primer	rimfire
Production & Service
Designer	Winchester
Design Date	2012
Production Dates	2013-present
Ballistic Performance Sampling
Bullet Wt./type Velocity Energy 20 gr. (1 g) 3,000 ft/s (910 m/s) 399 ft·lbf (541 J) 25 gr (2 g) 2,600 ft/s (790 m/s) 375 ft·lbf (508 J)

.17 Winchester Super Magnum, is a rimfire rifle cartridge developed by the 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 .

Development

Winchester, in conjunction with Savage, introduced this cartridge at the 2013 SHOT Show.

The brass case for this round is roughly 50% thicker than the 17 HMR, and the max average internal pressure is 33,000 psi, versus the 17 HMR's 26,000 psi.

Factory ammunition

Currently available is the Winchester Varmint High Velocity Ammunition 17 Winchester Super Magnum in either the 20 & 25 Grain Box of 50. The cartridge at 20 grain = 3000 fps and 25 grain = 2,600 fps.

Firearms

Currently, rifles firing the 17 WSM are the Savage B-Mag bolt action, 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.

See also

Specifications for the .17 WSM.

• 4 mm caliber
• Table of cartridges

External links

• Super .17 WSM: Savage B-Mag Review

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