HSM’s Pro Hunter line in .303 British (brand part no. 303BRIT-4-N) loads a 180-grain Sierra GameKing bullet for owners of a classic military surplus cartridge that has become a genuinely capable hunting round in civilian hands. HSM built an entire lineup around the time-honored Sierra GameKing and Pro-Hunter bullets, precisely matching each caliber’s individual components to its bullet so closely that the result performs like a careful handload rather than an off-the-shelf factory box. That level of load development gives .303 British owners access to genuine Sierra bullet performance in a cartridge most major manufacturers have stopped loading altogether. For .303 British hunters who want dependable, accurate ammunition for a classic rifle, this rifle ammunition keeps the cartridge relevant.

Key Specifications

• The chambering is .303 British, a classic military cartridge with genuine hunting credentials.
• The bullet weighs 180 grains, a proven weight for deer-class game.
• The bullet is a Sierra GameKing/Pro-Hunter, a time-honored hunting bullet design.
• HSM precisely matches each caliber’s components to its bullet, developing the load like a careful handload.
• The case material is brass, giving reliable extraction and consistent chambering.
• Cost runs about $1.95 per round, a reasonable price for a Sierra-bulleted classic-caliber load.
• Each box holds 20 rounds, enough to confirm zero and still hunt the season.
• A full case holds 20 boxes, 400 rounds total for hunters who load up for the season.

Frequently Asked Questions

Is the GameKing a genuine Sierra bullet? Yes, HSM loads authentic Sierra GameKing/Pro-Hunter bullets in its own precisely matched brass.

Is .303 British still viable for hunting? Yes, with a proven 180-grain bullet behind it, .303 British remains a capable deer-class hunting cartridge.

Why is HSM’s load development different from a generic factory load? HSM matches each caliber’s individual components to its bullet, developing the round more like a careful handload than mass-produced ammunition.

Buy HSM Pro Hunter .303 British 180gr Sierra GameKing

A classic military cartridge deserves a factory load that treats it seriously, and HSM’s handload-level matching keeps .303 British in the field. Order from our Lubbock, Texas gun shop and it ships fast to your door.