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

NROI Apr2025 USPSA 2
NROI Apr2025 USPSA 2

Range Officials: Changing The ‘Us Versus Them’ Attitude

“We have met the enemy and he is us.” —Walt Kelly, ‘Pogo’

New: SK Customs SOLO LOBO

SK Customs releases “SOLO LOBO,” latest in Untamed series.

USA Shooting Athletes Secure 6 Medals At ISSF Buenos Aires World Cup

Vizzi tops Rhode in Women’s Skeet final for a gold-medal finish at the 2025 ISSF World Cup in Buenos Aires.

JP Rifles JP-5: Pistol-Caliber Carbine Performance

JP’s premier pistol-caliber carbine—the JP-5—boasts many features competitors want, including reduced recoil for faster follow-up shots.

2025 NRA National Matches Preview

Pistol and Smallbore will be at Ohio’s Cardinal Center, with High Power spread across three different venues.

USPSA Makes Limited Optics Official

For many USPSA shooters, Limited Optics provides a solid opportunity to get back in the action.

Interests



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