Federal Gold Medal .223 Remington 77-grain Sierra MatchKing boat-tail hollow point ammunition (Federal part no. GM223M3) steps up to a heavier match bullet for shooters pushing .223 Remington’s accuracy potential further out. Federal Ammunition builds Gold Medal rifle loads around an exclusive primer design that provides the best sensitivity and most consistent ballistics in the industry. The precision-built Sierra MatchKing bullet is shot to win more matches than any other rifle bullet, and the heavier 77-grain weight holds velocity and resists wind drift better than lighter .223 loads at extended range. This is a serious choice for competitive shooters who need every advantage at distance.

Key Specifications

• The chambering is .223 Remington / 5.56 NATO, the standard AR-platform cartridge.
• The bullet weighs 77 grains, a heavier match weight for extended-range performance.
• The bullet is the Sierra MatchKing boat-tail hollow point (BTHP), built to win more matches than any other rifle bullet.
• The load uses an exclusive Gold Medal primer for the best sensitivity and most consistent ballistics.
• The heavier bullet holds velocity and resists wind drift better than lighter .223 loads at distance.
• The box measures about 5.95 inches in packaging length, sized for standard rifle-ammo storage.
• Cases are made of brass, giving reliable extraction and consistent ignition.
• Each box holds 20 rounds, packaged 10 boxes to a case.
• At roughly $1.54 per round, this load is priced as a premium competition-grade round.

Frequently Asked Questions

Why choose 77 grains over 69 grains? The heavier bullet holds velocity and resists wind drift better at extended range, an advantage in longer-distance competition.

Is this ammo built for competition? Yes, Gold Medal is Federal’s dedicated match-grade line, built around exclusive primers and precision components.

What is a Sierra MatchKing bullet? It is a precision-built boat-tail hollow point widely regarded as one of the most accurate match bullets available.

Buy the Federal Gold Medal .223 Remington 77gr SMK BTHP

Push your effective range with a heavier match bullet. Shop our rifle ammunition lineup and order from our Lubbock, Texas gun shop for fast shipping to your door.