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

1 Lede Bestofdecade
1 Lede Bestofdecade

The Last 10 Years of Shooting Sports USA

Standout covers and milestones from the past decade celebrating Shooting Sports USA’s history, evolution and mission.

Legends: Philip Schreier 1962–2025

Philip Schreier, NRA Museums Director and firearms historian, passes away at 63, leaving a lasting legacy through his dedication to preserving American firearms history.

Review: Tikka T3x Ace Target Rifle

Hands-on review of Tikka’s T3x Ace Target shows solid accuracy and real-world PRS readiness straight from the box.

Year In Review: 10 Of Our Best Articles From 2025

A year-end look at SSUSA’s most-read 2025 stories covering competition results, match-ready firearms, SHOT Show highlights and expert shooting guidance.

Review: Fabarm Infinite RS Sporting

A radically modern double gun built to challenge over-under dominance on the sporting-clays course.

New: Federal 6 mm ARC Gold Medal Berger Target Load

Federal ships a new 6 mm ARC Gold Medal match load, blending Berger bullets with factory consistency for long-range precision.

Interests



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