Description
Federal’s Gold Medal line exists for one purpose: giving competitive shooters and precision rifle enthusiasts ammunition they can trust to perform the same way on the last shot as on the first. The GM223M loads a 69-grain Sierra MatchKing boat-tail hollow point, a projectile that has accumulated more match wins than any other rifle bullet in its class, largely because its uniformly drawn copper jacket holds concentricity shot to shot in a way that directly translates to consistent downrange groupings. At distance, small inconsistencies in jacket thickness cause the bullet to exit the muzzle with a slight wobble that never fully stabilizes — the MatchKing’s manufacturing tolerances keep that variable as small as possible.
The boat-tail geometry reduces drag as the bullet transitions from supersonic to transsubsonic flight, which matters most when you’re shooting at 300 yards and beyond where a flat-base bullet is already losing stability. A G7 ballistic coefficient of 0.165 reflects how efficiently this particular shape handles real-world aerodynamic drag for a boat-tail projectile, and Federal publishes G7 figures specifically because that model is more accurate than G1 for long-range work with this bullet form.
Federal loads this round over a specially formulated propellant and seats it in Federal brass, then primes it with their benchrest-quality Gold Medal primer — a component Federal designed specifically to provide more consistent ignition than standard primers across a wide range of temperatures. Muzzle velocity is 2,950 fps, and Federal publishes a full ballistic table so you can dial corrections rather than guess. If you’re running a load-development program or competing in any precision rifle discipline, this is a factory round worth working up your andard before switching to handloads.




