Federal Premium Gold Medal Sierra MatchKing .338 Lapua Magnum 300gr ammunition (Federal part no. GM338LM2) is built for long-range shooters who compete or train at distance. The 300-grain Sierra MatchKing boat-tail hollow point has a ballistic coefficient of .768, with a G7 value of .387. Federal loads it in its own brass with a benchrest-quality Gold Medal primer and a specially formulated propellant. Muzzle velocity is 2580 fps with 4434 ft-lbs of energy. Each box holds 20 rounds.

Key Specifications

• The chambering is .338 Lapua Magnum, an extreme-range cartridge that Federal loads here with a match bullet.
• Bullet weight is 300 grains, which determines how the load carries energy to the target.
• The bullet is the Sierra MatchKing Boat-Tail Hollow Point, the design Federal specifies for this load.
• Federal rates muzzle velocity at 2580 fps, a published figure that helps you build a ballistic table.
• Muzzle energy is 4434 ft-lbs, a useful number for comparing loads of the same caliber.
• Each box holds 20 rounds, a standard count for range sessions and hunting seasons.
• The ballistic coefficient is .768, a measure of how well the bullet resists drag in flight.
• Bullet length is 1.730 inches, a dimension to check against your rifle’s twist and magazine.
• The G7 ballistic coefficient is .387, the figure long-range shooters use in ballistic solvers.
• A uniform match jacket supports consistent long-range accuracy.

Frequently Asked Questions

Is this a match load or a hunting load? Federal lists it for competition, long range and target shooting under its Gold Medal match line.

What bullet does it use? It uses the 300-grain Sierra MatchKing boat-tail hollow point, which Federal says gives match shooters extra margin of ballistic performance.

How many rounds are in a box? Each box holds 20 rounds.

Buy the Federal Premium Gold Medal Sierra MatchKing .338 Lapua Magnum 300gr Ammunition, 20-Round Box

Gold Medal loads are built for the shooter who tracks every fraction of an inch at distance. With a .768 ballistic coefficient and 2040 fps still left at 500 yards, the 300-grain MatchKing is a load made for the .338 Lapua Magnum. Order from Federal‘s selection of rifle ammunition for fast, insured shipping from our Lubbock, Texas gun shop.