Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
Federal Premium Gold Medal 300 Winchester Magnum ammo bridges competition precision and factory availability. The 190-grain Sierra MatchKing jacketed hollow point exits at 2900 feet per second, delivering 3547 foot-pounds of energy and a 0.533 G1 ballistic coefficient for predictable trajectories past 1000 yards. Federal Premium manufactures this load to match-grade tolerances — each case holds powder charges within tenths of a grain, and Sierra holds bullet diameter and weight to competition standards. For precision rifle shooters who demand factory consistency without hand-loading bench time, this 300 Win Mag load translates magnum horsepower into repeatable long-range hits.
Performance at a Glance
| Spec | Value |
|---|---|
| Caliber | 300 Winchester Magnum |
| Bullet weight | 190 grains |
| Bullet type | Jacketed Hollow Point (Sierra MatchKing) |
| Muzzle velocity | 2900 fps |
| Muzzle energy | 3547 ft-lbs |
| G1 ballistic coefficient | 0.533 |
| Sectional density | 0.286 |
| Rounds per box | 20 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Range & Target |
| Manufacturer | Federal Premium |
The Sierra MatchKing bullet runs a thin jacket held to competition tolerances — diameter and weight variance stay within thousandths. Federal assembles this load in Boxer-primed brass cases, suitable for reloading when you want to tune velocity to your rifle’s chamber. The 0.533 BC keeps velocity supersonic well beyond typical hunting ranges, and the hollow-point boat-tail profile resists wind drift better than flat-base designs. You’ll find this load stocked by precision shooters running bolt-action platforms in 300 Win Mag, from tactical rigs to F-Class rifles. Browse our full 300 Win Mag ammo selection for training and match options.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Always follow the four universal rules of firearm safety when handling live ammunition.
- This product contains lead. California Proposition 65 requires disclosure of chemicals known to cause cancer or reproductive harm. See P65Warnings.ca.gov for details.
- Confirm your rifle’s chamber and twist rate accommodate 190-grain bullets before purchasing. Consult your firearm’s manual for maximum safe cartridge specifications.
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