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

Finnish LMG Foxhole 1939
Finnish LMG Foxhole 1939

Winter Warrior: The Finnish Lahti-Saloranta M/26 LMG

A little-known light machine gun from the inter-war era, the Finnish Lahti-Saloranta M/26 garnered a poor reputation during its service in World War II, but a closer look and some context reveals how innovative it was for its time.

Federal Ammunition Honored By National 4-H Shooting Sports

Federal Ammunition was recently honored with the 2025 4-H Shooting Sports Pioneer Award, which recognizes individuals or companies that have made significant contributions to the 4-H Shooting Sports program at a national level.

I Have This Old Gun: Polish Vis 35 Radom

One of the lesser-known designs from the 1930s, the Vis 35 Radom is widely considered to be one of the best of the pre-World War II handguns.

Rifleman Q&A: Colt 1860 12-Notch Conversion

"At a gun show, I saw a Colt 1860 Army Richards Conversion with 12 cylinder notches instead of the usual six. The dealer was not sure whether this was original to the gun. Were these extra notches a factory variation or just some frontier gunsmith’s backroom project?"

July 2025 Sees Lowest Gun Sales Numbers In Nearly Six Years

Following a nearly six-year, record-setting run, according to the latest NICS and NSSF reports, firearm sales have dropped just slightly below a million during the month of July.

Review: Extar EP9 Carbine

Sporting polymer construction, partial compatibility with America's rifle, a unique bolt assembly and a no-lubricant-required design, American Rifleman staff decided the Extar EP9 Carbine, in 9 mm, deserved closer inspection.

Interests



Get the best of American Rifleman delivered to your inbox.