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

Hk Cc9 GOTW 1
Hk Cc9 GOTW 1

Gun of the Week: Heckler & Koch CC9

The Heckler & Koch CC9 isn't merely just another micro-compact. It's the result of a significant amount of work on the part of the company's US subsidiary to create the first truly American-made HK.

The Armed Citizen® May 22, 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.

Political Report | Braced Pistols’ Status Unresolved

The U.S. Supreme Court has characterized handguns as the “quintessential” Second Amendment arm. Pistol braces increase accuracy and ease of operation for large-format handguns, especially for users suffering from physical disabilities.

The PROOF Research PXT: A New Approach to Barrel Rifling

PROOF Research has introduced PROOF eXponential Twist (PXT)—an advancement in rifling that improves durability, accuracy and shootability—to the commercial market.

Review: Springfield Armory Model 2020 Heatseeker

Back when American Rifleman reviewed Springfield's Model 2020 Waypoint, we noted that we ...couldn’t help but wonder if a tactical-version Model 2020 rifle might be a logical future offshoot of the Waypoint hunting rifle." With the Model 2020 Heatseeker, that version is finally here.

Marlin Goes Mad: The Marlin Mad Pig Customs Model 1894

Marlin’s latest Model 1894 lever-action rifle, a collaboration with Mad Pig Customs that is a far cry from traditional, delivers “modern, factory‑installed features previously found only on custom builds.”

Interests



Get the best of American Rifleman delivered to your inbox.