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HSM has spent decades building a reputation for precision ammunition that punches above its price point. This 300 Win Mag load stacks the deck in your favor by pairing matched components with one of hunting's most reliable bullets. The 200-grain Sierra GameKing soft-point carries a boat-tail design that gives you ballistic advantages normally reserved for match-grade rounds, which means flatter shooting and better wind deflection than conventional flat-base hunting loads.
The Sierra GameKing bullet has been around since 1978, and that longevity isn't accidental. Hunters have consistently wrung sub-MOA accuracy from GameKings in well-tuned rifles, and the 200-grain weight in the 300 magnum envelope sits right in the sweet spot for elk, moose, and other large game. The exposed lead tip promotes reliable expansion across a wide velocity window, while the soft copper jacket gives you controlled performance rather than fragmentation or over-expansion at closer ranges.
HSM loaded these rounds with components specifically matched to the GameKing's requirements. You get reloadable brass cases and 20 rounds per box, which makes it easy to build a supply or reload your empties. The ammunition is straightforward and well-made, coming from a company with real experience supplying precision loads to law enforcement and military users. This isn't exotic ammunition, but that's the point: it's engineered to work without surprises.
Yes. The 200-grain GameKing is purpose-built for large game and sits in an ideal weight range for magnum rifles targeting elk, moose, and similar-sized animals. The boat-tail design provides superior ballistics for extended ranges, and the soft-point construction delivers reliable expansion across typical hunting distances.
Absolutely. HSM loads these rounds on reloadable brass, which means you can resize, reload, and reuse the cases multiple times. This makes it a smart choice if you handload and want to stretch your ammunition budget over time.
Sierra GameKing bullets regularly produce 0.5 to 1.0 MOA accuracy in well-tuned bolt-action rifles. Field reports consistently show sub-MOA groups when the ammunition is fired from quality rifles and rifles are properly maintained. Your specific results will depend on your rifle, barrel condition, and reloading precision if handloading.
The tapered boat-tail reduces aerodynamic drag, which means the bullet retains velocity better over distance, shoots flatter, and drifts less in crosswinds compared to flat-base hunting bullets. This gives you an advantage when making longer-distance hunting shots.
| Caliber/Gauge | .300 Winchester Magnum |
|---|---|
| Case Material | Brass |
| Cost per Round | 2.95 |
| Grains | 200 gr |
| Length | 6.1000 |
| Manufacturer | |
| Manufacturer Part Number | 300WINMAG14N |
| Units per Box | 20 |
| UPC | 810742020927 |
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