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

MAC Assacollegiate 2026 2
MAC Assacollegiate 2026 2

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.

15 Great Photos From the 2026 NCAA Rifle Championship

A look at 15 of the best photos from the 2026 NCAA Rifle Championship at Ohio State, where WVU claimed its 21st title and both individual finals came down to the wire.

Savage Adds Rimfire Options To Model 110 Lineup

Savage Arms chambers the Model 110 action in .22 LR for the first time with three rifles that share stocks, triggers and accessories with the centerfire 110 short-action platform.

NRA America’s Rifle Challenge: Kyle Lamb on the Practical Benefits of Competition

Kyle Lamb explains why competition is the best test of gear and skill, then demonstrates a strong-to-support-side rifle transition on the ARC barricade.

Real Avid Bundles The AR Workbench Into One Box With New Master Collections

Real Avid launches bundled AR-15 and AR-10 Master Collection toolkits that scale from cleaning basics to full armorer setups, with prices ranging from $519 to $2,542.

Ole Miss Wins First NCAA Smallbore Rifle Team Title

Ole Miss rifle wins first NCAA smallbore title at 2026 NCAA rifle championship at Ohio State’s Covelli Center on Friday, March 13.

Interests



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