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

2026 Randle Team 1
2026 Randle Team 1

2026 NRA National Smallbore Prone Championship Team Day Results

Black Hawk Rifle Club swept all three conventional prone team places on Sunday, and the three F-Class teams finished within two points at the Cardinal Shooting Center.

All About The 48th Annual ATA Southwestern Grand

The 48th Annual ATA Southwestern Grand runs Sept. 7-13 at the Kansas Trapshooting Association homegrounds, with pre-squadding closing Sept. 5.

U.S. Team Wins FITASC Gold in Lisbon

Derrick Mein led the U.S. to Men’s Team gold at the 48th World FITASC Championship in Lisbon, where Tom Seay topped the individual leaderboard.

Rhode Golden, Simonton Silver in Women’s Skeet at 2026 ISSF World Cup Hangzhou

Kim Rhode wins gold and Simonton silver for a one-two punch on the women’s skeet podium in China.

NRA, Ammunition Depot Partner to Back Second Amendment Court Fights

NRA and Ammunition Depot partner to expand support for Second Amendment litigation.

X-Counts Decide Again at 2026 NRA National Smallbore Championship

Mike Carter wins the metallic prone aggregate on X-count after tying Wesley Shumaker at 3193, while Sam Pagliari leads F-Class Day 2 by a point.

Interests



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