Documented load configurations
| Load identifier | Grain | Bullet |
|---|---|---|
| GM308M | 168gr | Sierra MatchKing BTHP |
| GM308M2 | 175gr | Sierra MatchKing BTHP |
About Federal Gold Medal Match .308
Federal's 2019 catalog documents the 168gr GM308M and 175gr GM308M2 Gold Medal Sierra MatchKing configurations. That dated catalog does not establish current stock or packaging. A product-line name does not establish an accuracy guarantee for an individual firearm.
168gr vs 175gr — Configuration differences
The two listed configurations use different bullet weights. Bullet weight alone does not establish trajectory, wind deflection, accuracy, or the distance at which a bullet becomes transonic. Those comparisons require the specific bullet's published data, muzzle velocity, and stated atmospheric conditions. This page does not select a load for a user.
How It Compares
Federal Gold Medal Match, Hornady ELD Match, Berger, and Lapua are distinct product lines. Current listing prices and round counts determine ammunition cost per round. Known shipping costs are needed for a delivered comparison. This page does not rank accuracy or manufacturing tolerances.
Comparing listings
Retailers may combine multiple packages into a larger listing; its actual round count supplies the cost-per-round divisor. Verify the package label rather than inferring quantity from a load identifier. Manufacturer guidance governs firearm compatibility. A .308/7.62x51 comparison family is not a chamber-compatibility assurance.
Related
- All .308 Winchester ammo prices
- .308 match grade
- Hornady ELD Match 6.5CM — 6.5CM precision
- Federal Power-Shok .308 — soft point configurations
- All Federal ammo
- .308 whitetail loads compared — product-line comparison
- What does grain mean in ammo? — bullet-weight units and comparison limits