WATCH: Behind The Scenes At The Winchester Rimfire Ammunition Plant

by
posted on February 20, 2020

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

USPSA Shotgun 1
USPSA Shotgun 1

Kicking Off The 2025 USPSA Shotgun Season

USPSA opens 2025 Shotgun Series, marking a historic shift to performance-based team selection for the 2026 World Shoot in Greece.

Upgrading Your Firearms With LOK Grips

LOK Grips’ Thin Bogies: slim, grippy and built for control.

Share Your Local Match Results With Shooting Sports USA

Want your match results in Shooting Sports USA? Submit Score Sheets with full details, photos and a great story.

Looking Back At The 2016 NRA Intercollegiate Pistol Championship

In 2016, Ohio State won its third straight NRA Pistol title; West Point’s Schanz and North Dakota State’s Townsend led standout performances at Ft. Benning.

Small But Mighty: Mount Aloysius College Rifle Team

Mount Aloysius College rifle team caps off its rookie year as MAC champions.

Windy Conditions Challenge Competitors At CMP 2025 High Power Long-Range Warm-Up

The 2025 CMP High Power Long-Range Warm-Up saw more than 60 shooters battle gusty winds and fierce competition across multiple rifle classes.

Interests



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