The Sig Sauer Marksman Hunter GameKing ammunition is precision-loaded for hunters and long-range shooters who value consistent trajectories and reliable terminal performance. These cartridges use Sierra GameKing boat-tail projectiles with a skived nose and a thick jacket to promote repeatable expansion on medium game. Each box contains 20 rounds for rifles chambered in .30-06 Springfield, with test-barrel data reported from a 24.0″ barrel.
Key Specifications
- The manufacturer is Sig Sauer.
- The caliber is .30-06 Springfield.
- The bullet weight is 165 grains.
- The projectile is Sierra GameKing.
- The bullet type is boat-tail jacketed hollow point.
- Each box contains 20 rounds.
- Boxes per case: 10.
- Reported muzzle velocity is 2800 fps.
- Reported muzzle energy is 2872 ft-lb.
- Ballistic coefficient (G1) is 0.363.
Designed for the practical hunter and precision shooter, this load combines Sierra’s GameKing profile with SIG’s precision loading to deliver flatter trajectories and consistent terminal performance. The boat-tail design reduces drag and improves wind resistance, making these rounds a solid choice for field work and long-range shooting when repeatability matters.





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