HSM .300 WSM ammunition (part no. HSM-300WSM-39-N) loads a 150-grain Sierra GameKing Spitzer Boat Tail for hunters who want dependable performance in the field. HSM hand-loads short production runs using premium bullets 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 WSM loading is a dependable choice worth adding to the cart.

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Key Specifications

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• The chambering is .300 WSM, a short-action magnum that matches full-length .300 Winchester Magnum ballistics from a shorter case.

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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 WSM.

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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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• The box ships at about 1.5 lb, handy for estimating freight on a bulk order.

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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 WSM 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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What comes in the box? Each box ships 20 rounds of factory-fresh .300 WSM ammunition in the original manufacturer packaging.

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Buy the HSM .300 WSM 150 gr Sierra GameKing Spitzer Boat Tail

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A solid zero and dependable ammunition matter more than anything else when it counts, and this Sierra GameKing Spitzer Boat Tail loading is built to be the round you don’t have to think twice about. Stock up before the next range day or hunt. Order from our Lubbock, Texas gun shop and it ships fast to your door.