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

2026Gallery Lede 1
2026Gallery Lede 1

Gallery: The 2026 NRA National Championships in 16 Photos

Photos from the 2026 NRA National Pistol, Smallbore and High Power Championships, where Jon Shue won a fourth straight title and Mike O’Connor made NRA Lones Wigger Iron Man Trophy history.

Magpul DAKA Range Bags Arrive in Flat Dark Earth

Magpul’s DAKA Range Bags are now offered in flat dark earth in both 20-liter and 40-liter sizes, with welded seams, sealed zippers and a fold-out work mat.

Down To The Wire: Team USA F-T/R Earns World Championship Bronze at Bisley

The U.S. F-T/R team took Richardson bronze at the 2026 F-Class World Championships, swept two team matches and earned five NRA International Distinguished badges.

Beretta Adds a Factory-Ported APX A1

Beretta’s APX A1 Ported vents gas through seven slide cuts to fight muzzle rise, adds oversized ambidextrous controls and ships in FDE and OD Green at $629.

Next Generation, World Stage: USA Under-25 F-Open Team Brings Home Silver From Bisley

The USA Under-25 F-Open Team won team silver at the 2026 F-Class World Championships, with two Americans on the individual podium.

Jacob Grey Licenses Hex Design Rights From HEXMAG

Jacob Grey Firearms has licensed intellectual property from HEXMAG covering its Hex and Hex Pro pistols, with no changes to design, pricing or availability for shooters.



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