HSM .243 Winchester 100-grain Sierra GameKing Spitzer Boat Tail ammunition (part no. 24317N) loads the heaviest common bullet weight for the caliber, giving hunters more penetration than lighter .243 loads without stepping up to a bigger cartridge. HSM tops this 100-grain bullet with Sierra’s GameKing spitzer profile, engineered to carry velocity downrange while the jacket expands reliably on game-sized targets. The boat-tail base trims aerodynamic drag for a flatter trajectory than a flat-base bullet of the same weight. In rifle ammunition for deer and hog hunting, this is the heavier, deeper-penetrating option in HSM’s .243 lineup.

Key Specifications

• The chambering is .243 Winchester, a mild-recoiling, flat-shooting cartridge popular with hunters of all experience levels.
• The bullet weighs 100 grains, the heaviest common weight for the caliber, favored for added penetration.
• The bullet is a Sierra GameKing spitzer boat tail, built to expand reliably on game while carrying velocity downrange.
• The boat-tail base trims aerodynamic drag for a flatter trajectory than a flat-base bullet of the same weight.
• The cases are brass, and each box holds 20 rounds, shipped 25 boxes to the case.
• Cost runs about $1.68 per round for a proven hunting bullet.
• This load is built for bolt-action rifles chambered in .243 Winchester.
• HSM loads this Sierra component bullet without the overhead of a major national brand, keeping cost per round competitive.
• The spitzer profile also holds a flatter trajectory than a round-nose or flat-point bullet of the same weight.

Frequently Asked Questions

Why choose 100 grains over a lighter .243 load? The heavier bullet adds momentum and penetration, a common preference for larger deer or hogs compared to the caliber’s lighter varmint-to-deer loads.

What is the difference between a GameKing and a MatchKing bullet? Sierra builds the GameKing’s jacket to expand reliably on game-sized targets, while the MatchKing is built purely for accuracy and is not intended to expand.

Buy HSM .243 Winchester 100gr Sierra GameKing

When you want the most penetration a .243 can deliver, the 100-grain GameKing is the load to reach for. Load up before the season starts. Order from our Lubbock, Texas gun shop and it ships fast to your door.