Description
The Federal 300 Win Mag 190gr SMK BTHP load is built for shooters who want more from their .300 Winchester Magnum than typical factory ammunition delivers. Federal loads a 190 grain Sierra MatchKing boat-tail hollow point to a rated 2900 feet per second, producing about 3549 foot-pounds of energy. Gold Medal ammunition is loaded with match-grade primers, carefully selected cases and the proven Sierra MatchKing bullet for consistent accuracy at long range.

Why Choose the Federal 300 Win Mag 190gr SMK BTHP
- 190 grain Sierra MatchKing boat-tail hollow point bullet
- Rated 2900 fps and 3549 ft-lbs
- Brass cases with reliable primers
- Match-grade primers and cases
- 20 rounds per box, item GM300WM
Built for Precision
- Match-grade accuracy and consistency
- Tight velocity spreads for predictable drop
- Quality brass cases and reliable primers
- Suited to competition and long-range practice
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 300 Win Mag 190gr SMK BTHP until you are comfortable with it, and store the rest in a cool, dry place in the original box.
The .300 Winchester Magnum was introduced in 1963 and has become one of the most popular magnum rifle cartridges in the world, used by hunters, military snipers and long-range competitors. Its belted case pushes heavy .30 caliber bullets fast enough to stay supersonic well past 1000 yards, and match loads like this one make the most of that reach on steel and paper targets.
Specifications
- Brand: Federal Premium
- Product Line: Gold Medal Sierra MatchKing
- Caliber: .300 Winchester Magnum
- Bullet Weight: 190 grains
- Bullet Type: Sierra MatchKing boat-tail hollow point
- Muzzle Velocity: 2900 fps
- Muzzle Energy: 3549 ft-lbs
- Case: Brass
- Quantity: 20 rounds
- Item Number: GM300WM
- UPC: 29465091736
Why Choose Federal 300 Win Mag Ammo
Competitors and long-range shooters looking for 300 win mag match ammo need tight groups and consistent velocity. This Gold Medal Sierra MatchKing load from Federal is assembled with match-grade components and tight quality control for repeatable accuracy.
The 300 win mag 190 grain matchking bullet leaves the muzzle at about 2900 fps with roughly 3549 ft-lbs of energy. The 190 grain MatchKing retains velocity well and bucks the wind, making it a favorite for long-range target shooting and competition.
Federal Premium has made ammunition in Anoka, Minnesota since 1922 and is one of the largest ammunition makers in the country. Its Gold Medal Sierra MatchKing line is built with the same quality controls as its premium hunting and law enforcement loads, and federal 300 win mag ammo is trusted by shooters, hunters and agencies across the United States.
This ammunition is a good fit for owners of precision bolt-action rifles such as the Remington 700, Savage 110, Tikka T3x and custom long-range builds chambered in .300 Winchester Magnum. Always confirm your firearm is chambered for .300 Winchester Magnum, 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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