The HSM Game King .300 RUM 200gr Sierra GameKing Spitzer Boat Tail load (HSM part no. 300RUM14N) pairs one of the most powerful commercially available magnum cartridges with a time-honored hunting bullet. HSM builds its entire Game King lineup around Sierra’s GameKing and Pro-Hunter bullets, precisely matching each caliber’s components to maximize accuracy and terminal performance. The .300 Remington Ultra Magnum drives this 200-grain spitzer boat tail bullet to extreme velocity, giving hunters serious reach and knockdown power on the biggest North American game. It is a premium option among rifle ammunition for hunters chasing elk, moose, or dangerous game at extended range.

Key Specifications

• Chambered in .300 Remington Ultra Magnum, one of the most powerful commercially available magnum cartridges.
• Loaded with a 200-grain bullet, a heavy weight built for large, tough game.
• Uses the Sierra GameKing spitzer boat tail bullet, a proven hunting design.
• Cased in brass for reliable extraction and reloading.
• Packaged 20 rounds per box, sold 20 boxes to a case for hunters stocking up before a major hunt.
• Runs about $4.22 per round, in line with premium magnum hunting ammunition.
• Components are precisely matched by HSM to maximize accuracy and performance for this specific caliber.
• Built for extreme long-range hunting of the largest North American big game.
• The spitzer boat tail profile holds velocity and resists wind drift better than a flat-base bullet at extended range.

Frequently Asked Questions

What is the .300 RUM built for? It is one of the most powerful production magnum cartridges, built for extreme reach and knockdown power on large big game.

What bullet does this load use? A 200-grain Sierra GameKing spitzer boat tail, a proven hunting bullet HSM matches specifically to this caliber.

Buy the HSM Game King .300 RUM 200gr Sierra GameKing Spitzer Boat Tail Ammo

The biggest game at the longest range calls for a cartridge with the reach and power to close the deal, and the .300 RUM is built for exactly that. Load up before the season gets away from you. Order from our Lubbock, Texas gun shop and it ships fast to your door.