Winchester Super-X Turns 100

by
posted on October 31, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Winchester Super-X

Photo by Forrest MacCormack.


Since 1921, Winchester’s Super-X brand has provided hunters and sport shooters with dedicated, dependable loads for rifles and shotguns. To commemorate its centenary, Winchester is offering seven cartridge options packaged in retro-style boxes, such as the 12-ga. load shown above.

Winchester President and owner John Olin developed the concept of Super-X in the early 20th century, theorizing that progressive-burning powders could produce greater velocities and more energy without creating significant pressure spikes. While the concept is commonly used in ammunition today, the idea was revolutionary back in the 1910s and ‘20s, and Winchester’s offering of Super-X ammunition loaded with progressive-burning powder made it more powerful than ammunition loaded with conventional smokeless powders of the time.

Available options in the Winchester 100th anniversary Super-X lineup include: .22 Long Rifle, .243 Win., .270 Win., .30-30 Win., .308 Win. and two 12-ga. options. The .270 Win., .30-30 Win. and .308 Win. loads are topped with a 150-grain Power-Point bullet, while the .243 Win. is loaded with a 100-grain Power-Point bullet. The .22 Long Rifle offering will include a 40-grain Power-Point projectile. The two 12-gauge options are both 23/4" shells, one loaded with No. 6 shot and the other with 00 buckshot. winchester.com

Latest

Smith Wesson Model 19 Carry Comp 1
Smith Wesson Model 19 Carry Comp 1

Gun Of The Week: Smith & Wesson Model 19 Carry Comp

In our latest Gun Of The Week episode, we’re on the range with the Smith & Wesson Model 19 Carry Comp, a medium-size revolver chambered for .357 Magnum.

The Armed Citizen® Dec. 26, 2025

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

The Overlooked Austrian: The Schwarzlose M1907 Machine Gun

Among the machine guns used by all the powers involved in World War I, the Austrian Schwarzlose is often forgotten. But this simple, reliable arm saw service for more than 20 years across two world wars.

New Hodgdon Reloading Manual, Sierra Bullets Announced

Hodgdon announced the launch of its 2026 reloading manual, while Sierra Bullets launched a collection of heavy-for-caliber bullets for handloaders.

Preview: NRA RFID Bi-Fold CCW Permit Wallet

Show your NRA pride while protecting your valuable financial information with this specially configured wallet from the NRA Store.

I Have This Old Gun: Colt 1860 Army Revolver

For the Union Army during the American Civil War, its officers and cavalry troopers relied on one of Colt's most notable firearms: the 1860 Army revolver.

Interests



Get the best of American Rifleman delivered to your inbox.