Ultimate Firearms, Inc. has been designing and building custom centerfire firearms for over three decades. Founded and owned by Kenneth Johnston, the company specializes in precision-engineered weapons built for hunters who refuse to accept off-the-shelf limitations. Ten years of development led to ...
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Ultimate Firearms, Inc. has been designing and building custom centerfire firearms for over three decades. Founded and owned by Kenneth Johnston, the company specializes in precision-engineered weapons built for hunters who refuse to accept off-the-shelf limitations.
Ten years of development led to what Ultimate Firearms calls the world's best custom muzzleloader. The Johnston Muzzleloader combines extreme power with practical field use:
The rifle features a patented ignition system with a lugged, locking bolt and two blow-by ports to prevent primer blowback. It's been in retail production since 2001 with consistently strong reviews from serious hunters.
Gone are the days of removing breech plugs and scrubbing tiny parts. The Johnston Muzzleloader is engineered to such tight tolerances that fouling doesn't blow down the breech threads. Two to three cleaning patches between shots takes about a minute—roughly the same maintenance as a centerfire rifle.
Instead of struggling with tiny percussion caps or .209 primers, the Johnston uses a unique patented .45 caliber brass casing with a magnum rifle primer—ten times hotter than standard .209s. The casing surrounds the nipple, preventing any blow back. You get clean casings each shot that can be reprimed and reused.
Ultimate Firearms' newest offering solves a problem for hunters in restricted states. The Game Breaker is a straight-wall casing rifle legal in shotgun-only deer zones:
| Feature | Specification |
|---|---|
| Caliber | .450 Bushmaster |
| Action | Remington Model 700 |
| Barrel | Lothar Walther stainless steel |
| Twist | 1 in 24" |
| Lengths | 20", 22", or 24" |
| Stock Options | McMillan or H&S Precision synthetics |
| Accuracy | 3-shot 100-yard groups demonstrated |
With the accuracy and power to outperform slug guns, the Game Breaker gives hunters the long-range performance of the Johnston Muzzleloader with faster reload speeds.
Ultimate Firearms stocks and recommends:
Detailed muzzleloader ballistics available on their website for Fury Bullet performance data with the Johnston Muzzleloader.
Every firearm is made to order—Ultimate Firearms doesn't stock pre-made inventory. Each build receives individual time and attention from Kenneth Johnston's team. Custom orders should be placed well in advance of hunting season.
Customization options include: - Caliber selection - Stock choices (synthetic or premium options) - Barrel fluting - Enhanced triggers (thoroughly inspected, even on recalled models) - Cerakote finishing on barrel, bolt, and action (+$1000)
Ultimate Firearms, Inc. 3470 Dobie Road Okemos, MI 48864
Ultimate Firearms maintains customer communities for hunters documenting verified kills at extended ranges, reinforcing the real-world performance of their weapons.
"Put 'Em in a Pile at a Quarter Mile with the Johnston Muzzleloader. If you are a competent shooter, this gun will do it! Accuracy is everything!" — Kenneth Johnston, President
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