• Ultimate Firearms Game Breaker

Ultimate Firearms Game Breaker


Market types:


Rifle type:

Bolt Action


450 Bushmaster

About Product

Ken Johnston has done it again! Years of research and development has lead him to yet another revolutionary weapon from Johnston Firearms™. Introducing the Game Breaker line of rifles... The Game Breaker, available in the .450 Bushmaster, is a straight-wall casing rifle with devastating POWER and ACCURACY!

Shotgun Alternative

The Johnston Muzzleloader has always been, and still is, a great alternative in shotgun/muzzleloader only units. Now, the Game Breaker is another incredible option. The Game Breaker blows away the best slug guns on the market today. With incredible accuracy, power, and ease-of-use, the Game Breaker is a game changer! Now have all the benefits of the long range performance of the Johnston Muzzleloader with the ease of use and reloading speed of a multiple shot slug shotgun.

Available Calibers

  • 450 Bushmaster

Bullet Options

  • Hornady 450 Bushmaster
    • Available over the counter
    • 1.700" casing length
    • Tactical bullet: 325 grain, .650 BC
    • white-tipped: 300 grain, .250 BC

Lothar Walther Barrel

  • 1 in 24” twist
  • Stainless steel, Lothar Walther barrel
  • 20, 22, and 24" barrel lengths available
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