Winchester Celebrates 100th Anniversary Of Super-X

by
posted on June 27, 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 100Th Anniversary F

Winchester is celebrating the 100th anniversary of its popular Super-X brand of ammunition. Since 1921, Super-X has been a trusted and proven element of Winchester Ammunition's lineup of products, giving hunters and sport shooters a dedicated, dependable load for rifles and shotguns. On its centenary, Winchester will offer seven cartridge options packaged in retro-styled boxes.

“Winchester is a brand that represents both legacy and innovation,” said Matt Campbell, vice president of marketing and sales. “For more than 150 years, Winchester has been a leader in innovation with brands like Super-X, which fundamentally changed the ammunition landscape when it was introduced. That continuous innovation is part of the Winchester story and continues today.”

Available options in the Winchester 100th anniversary Super-X lineup will include 30-30 Win., .270 Win., .243 Win., .308 Win., .22 Long Rifle and two 12-ga. options. The .30-30, .270 and .308 loads are topped with a 150-gr. Power-Point bullet, while the .243 Win. is loaded with a 100-gr. Power-Point bullet. The .22 Long Rifle offering will include a 40-gr. Power-Point projectile. The two 12-ga. options are both 2 3/4" shells, one loaded with No. 6 shot and the other loaded with 00 buck.

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 dramatically more powerful than ammunition loaded with conventional smokeless powders of the time.

Latest

Keltec Pr3at 1
Keltec Pr3at 1

The PR-3AT: KelTec's Magazine-Free .380

At its heart, the KelTec PR-3AT is a compact concealed-carry pistol chambered in .380 ACP that uses the same rotary-barrel and top-loading, magazine-free design as the PR57.

The 1911 DS Warrior: Kimber's Budget-Priced Double-Stack

With its new 1911 DS Warrior, Kimber is offering a more affordably priced option to handgun enthusiasts looking for a do-it-all double-stack that still retains key 1911 features.

Staccato Expands HD Lineup With C4X Carry Models

Staccato announced a new flagship model in its HD line of guns at SHOT Show 2026: the HD C4X.

Deciphering (Mostly Nonsensical) Cartridge Nomenclature

If you’re perplexed by the naming practices used by our wildcatting forefathers and cartridge makers but are still curious about what they mean, read on.

The Armed Citizen® Jan. 19, 2026

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

"9 mm Optimized, But 10 mm Capable:" Dead Air's New RXD910Ti Suppressor

The new Dead Air RXD910Ti harnesses the technology of the patented Triskelion baffle system to make for a 9 mm-optimized silencer that is also capable for use with 10 mm pistol cartridges and more.

Interests



Get the best of American Rifleman delivered to your inbox.