WATCH: Behind The Scenes At The Winchester Rimfire Ammunition Plant

by
posted on February 20, 2020
** 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. **

The folks at American Rifleman Television recently had the chance to tour the Winchester Ammunition rimfire factory in Oxford, MS. A large portion of the billions (yes billions) of rimfire rounds produced every year in the U.S. are made at Winchester's Oxford plant. Watch the video above for a behind the scenes look with American Rifleman magazine Editor-in-Chief Mark Keefe.

The Winchester plant in Oxford runs three shifts, 24 hours a day. Since rimfire shooters have an enormous appetite for .22 LR ammunition, having enough volume from a manufacturing standpoint to supply consumer demand is something that Winchester take very seriously. As such, the company is building as much quality rimfire ammunition as it can.

To build a rimfire cartridge is not your typical assembly-line process. Different components (some explosive) come from different parts of the factory to facilitate assembly in what's more accurately described as a batch process.

One major challenge in rimfire cartridge manufacture: building the cartridge rim to the right dimensions so the proper amount of priming mix can be added for consistent ignition.

Going beyond .22 LR, Winchester has been a key player in the rimfire game for decades with innovations like the first magnum rimfire, the .22 Win. Mag., and the improved .17 Win. Super Mag.—the fastest rimfire load available.

With companies like Winchester working hard to produce rimfire ammunition in the amounts needed to satisfy shooter needs, it looks like we are safe from any shortages in the near future. 


See more: Rimfire Ammunition Reliability

Latest

Federal Subsonic Target 1
Federal Subsonic Target 1

New: Federal Subsonic Rifle Target Loads

Federal Ammunition’s new Subsonic rifle target loads eliminate the supersonic crack that suppressors cannot silence, shipping now with three cartridges at 1,000 fps from $36.99 to $54.99.

New: Ruger 250th Anniversary Series

Ruger’s 250th Anniversary Series marks the U.S. semiquincentennial with eight limited-production items.

Erich Mietenkorte Sweeps Smallbore, High Power at 2026 Bernd Meier Silhouette Championship

Team Lapua’s Erich Mietenkorte wins both discipline titles at 2026 Bernd Meier Silhouette Invitational Championship in British Columbia in March.

Jessie Harrison’s Dominant Run at the 2026 US Steel Nationals

Taurus Team Captain Jessie Harrison claims Ladies Carry Optics, Ladies Open and Ladies Overall honors at 2026 US Steel Nationals.

Bethel University Clears the Board at SASP College National Championship

Bethel University becomes first team in history to sweep all 11 discipline titles at 2026 SASP College National Championship at Talladega Marksmanship Park.

MAC Athletes Shine at 2026 ASSA Intercollegiate Nationals

Coast Guard Bears earn team bronze in smallbore, aggregate; Rhode Island’s Sophia Wood ranks third at 2026 ASSA Intercollegiate Rifle Club Nationals.

Interests



Get the best of Shooting Sports USA delivered to your inbox.