HSM Game King .300 Weatherby Magnum ammunition (part no. 300WBY-16-N) loads a 150-grain Sierra GameKing Spitzer Boat Tail for hunters heading out after deer-class game and similarly sized animals. HSM hand-loads short production runs using premium bullets from Hornady, Sierra, and Berger rather than mass-producing generic projectiles. The boat tail profile holds velocity downrange while the tapered jacket delivers controlled expansion on game. Cased and 20 to a box, it is built to feed reliably through bolt guns and semi-autos chambered for the cartridge. In our rifle ammunition lineup, this .300 Weatherby Magnum loading is a confirmed, dependable choice worth adding to the cart.

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Key Specifications

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• The chambering is .300 Weatherby Magnum, a high-velocity magnum with a devoted following among long-range big-game hunters.

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• The bullet weighs 150 grains, setting the balance of velocity and downrange energy this load is tuned for.

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• The bullet is a Sierra GameKing Spitzer Boat Tail, the projectile HSM chose to load behind .300 Weatherby Magnum.

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• The boat tail profile holds velocity downrange while the tapered jacket delivers controlled expansion on game.

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• Each box holds 20 rounds, enough to confirm zero and still have rounds on hand.

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• A case ships 20 boxes (400 rounds total), ideal for stocking up or buying once for the season.

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• At about $3.52 per round, the price reflects the bullet construction loaded into this round.

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Frequently Asked Questions

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What game is the 150-gr Sierra GameKing Spitzer Boat Tail suited for? With .300 Weatherby Magnum behind a Sierra GameKing Spitzer Boat Tail bullet, it is built for deer-class game and similarly sized animals within the cartridge’s normal hunting range.

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How many rounds come in a case? A case ships 20 boxes of 20, 400 rounds total.

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How is the Sierra GameKing Spitzer Boat Tail different from a standard cup-and-core bullet? The boat tail profile holds velocity downrange while the tapered jacket delivers controlled expansion on game.

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Buy the HSM Game King .300 Weatherby Magnum 150 gr Sierra GameKing Spitzer Boat Tail

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When the shot has to count, dependable ammunition is what separates a clean hit from a story about the one that got away. This Sierra GameKing Spitzer Boat Tail loading is built to be that dependable round. Order from our Lubbock, Texas gun shop and it ships fast to your door.