7mm Winchester Short Magnum

Friday, December 27th, 2019

7mm Winchester Short Magnum

Introduced by Winchester in 2001 the 7mm Winchester Short Magnum was the third short magnum, in a series of short magnums, released by them. The short magnums were designed to use short actions and utilize wider bodies to accommodate for more powder capacity instead of length. In the original design the 7mm WSM slightly better ballistically to the 7mm Remington Magnum and the 7mm Remington Short Action Ultra Magnum (RSUM).

The original ammunition was release using 140 grain Ballistic Silvertip, 150 grain Power-Point and 160 grain Fail Safe bullet is an excellent cartridge for deer, sheep, black bear, and elk. It is capable of propelling a .284” dia. 160 grain bullet at 3,050 fps. with 3,306 ft.-lbs. of energy.

With the development of better bullet technology, powders, and primers reloaders have been able to achieve better ballistics results over the last several years and the 7mm WSM is proving to be an effect long range caliber.

Roberson Cartridge Company is a custom manufacture of Vintage, Obsolete, Hard to Find and Wildcat calibers.

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