Description
The Federal 22 WMR 40gr FMJ load is built for shooters who want more from their 22 WMR than typical factory ammunition delivers. Federal loads a 40 grain full metal jacket to a rated 1880 feet per second, producing about 314 foot-pounds of energy. Federal rimfire ammunition is made in Anoka, Minnesota with the same priming and quality control as its centerfire lines, for reliable ignition and consistent accuracy from bolt, lever and semi-auto rimfire guns.

Why Choose the Federal 22 WMR 40gr FMJ
- 40 grain full metal jacket bullet
- Rated 1880 fps and 314 ft-lbs
- Brass cases with reliable primers
- Reliable rimfire ignition
- 50 rounds per box, item 737
Built for Training and Practice
- Affordable load for regular range practice
- Reliable feeding and ignition
- Consistent velocities for repeatable practice
- Quality brass cases
Buying ammunition by the box from the same production lot keeps velocity and point of impact consistent from one range trip to the next. Keep a record of the load you carry, check your ammunition for dents or loose bullets from time to time, and rotate your carry rounds so the ones in your firearm stay fresh. These simple habits help you get the full performance Federal builds into every cartridge.
Before you trust any new load, fire enough rounds through your firearm to confirm it feeds, fires and ejects reliably and that the point of impact matches your sights. Full-power loads produce more recoil and muzzle blast than typical range ammo, so practice with the Federal 22 WMR 40gr FMJ until you are comfortable with it, and store the rest in a cool, dry place in the original box.
About the .22 WMR
The .22 Winchester Magnum Rimfire was introduced in 1959 and remains the most powerful common rimfire cartridge. It works well for varmints and small game from rifles, and modern loads also make it a practical choice in small revolvers.
Specifications
- Brand: Federal Premium
- Product Line: Champion Rimfire
- Caliber: 22 WMR
- Bullet Weight: 40 grains
- Bullet Type: full metal jacket
- Muzzle Velocity: 1880 fps
- Muzzle Energy: 314 ft-lbs
- Case: Brass
- Quantity: 50 rounds
- Item Number: 737
- UPC: 029465056032
Why Choose Federal 22 WMR Ammo
Shooters who need dependable 22 wmr rimfire ammo want consistent velocity and reliable function box after box. This Champion Rimfire load from Federal delivers that with quality brass cases, reliable primers and carefully measured powder charges, so practice sessions are spent building skill rather than chasing flyers.
The 22 wmr 40 grain fmj bullet leaves the muzzle at about 1880 fps with roughly 314 ft-lbs of energy. Federal loads it with its own primers and brass, controlled to tight tolerances for consistent ignition and velocity from box to box.
Whether you are sighting in, practicing or heading to the field, choosing a proven load like the Federal 22 WMR 40gr FMJ removes one more variable, so you can focus on your fundamentals and shoot with confidence every time you pull the trigger.
Federal Premium has made ammunition in Anoka, Minnesota since 1922 and is one of the largest ammunition makers in the country. Its Champion Rimfire line is built with the same quality controls as its premium hunting and law enforcement loads, and federal 22 wmr ammo is trusted by shooters, hunters and agencies across the United States.
Always confirm your firearm is chambered for 22 WMR, wear eye and ear protection, and follow all federal, state and local laws.
Browse more ammunition at Mag 5 Firearms, or visit Federal Premium for more about their full line of loads.







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