Description
The Browning X-Bolt CMSTK 300 MAG Black is a premium, composite-stocked bolt-action rifle chambered in the hard-hitting .300 Winchester Magnum cartridge. It’s built for serious hunters and long-range shooters who demand accuracy, reliability, and a smooth action straight from the factory. I’ve put a few boxes of ammo through this platform, and it’s a purpose-built tool for big game and reaching out across Missouri’s open fields.
Key Features That Stand Out
- Feather Trigger: Browning’s adjustable trigger is crisp and clean, breaking consistently right out of the box—no gunsmithing required to get a great pull.
- Composite Stock (CMSTK): The black composite stock is durable, weather-resistant, and free-floats the barrel for consistent accuracy shot after shot.
- 60° Bolt Lift: This short-throw design is fast. It clears scopes easily and allows for quicker follow-up shots compared to a standard 90° lift.
- Rotary Magazine: The detachable, flush-fit mag feeds smoothly and is much more user-friendly than a traditional internal box magazine.
- Inflex Technology: The recoil pad and bedding system genuinely work to manage the stout .300 Win Mag recoil, making long range sessions more manageable.
Specifications & Details
| Caliber | .300 Winchester Magnum |
| Barrel Length | 26 inches |
| Overall Length | 46.5 inches |
| Weight | Approx. 7 lbs 3 oz |
| Magazine Capacity | 3+1 Rounds |
| Action | Bolt Action |
Look, the .300 Win Mag is a serious cartridge, and this rifle is built to handle it. The 26-inch barrel gives that magnum powder plenty of room to burn, maximizing velocity for flatter trajectories at extended ranges. At just over 7 pounds, it’s light enough to carry all day but has enough heft to help tame the recoil. The price point of $825.87 puts it in a competitive spot against other premium hunting rifles, offering Browning’s proven design without breaking the bank. It’s a system that works, and the proof is on the target.
Who This Rifle Is For
This isn’t your first deer rifle. The Browning X-Bolt CMSTK 300 MAG Black is for the experienced hunter pursuing elk, moose, or bear out West, or for the Missouri shooter who wants a capable long-range rifle for the occasional elk tag or precision shooting at distances our standard whitetail cartridges can’t touch. It’s also for the shooter who appreciates refined mechanics—that buttery-smooth bolt glide and clean trigger break are tangible luxuries.
Straight-Talk Pros & Cons
Pros: The action is famously slick and reliable. Accuracy is typically excellent with quality ammo. The composite stock is tough as nails in all conditions. The Feather Trigger is one of the best factory triggers available. The rotary mag system is a genuine improvement.
Cons: .300 Win Mag ammo is expensive, and practice gets costly. Recoil is substantial, though the Inflex pad helps. The 26-inch barrel can feel a bit long and unwieldy in thick timber or a blind. It’s a specialized tool, not a general-purpose rifle.
Frequently Asked Questions
Q: Is this rifle ready to hunt, or what else do I need?
A: You’ll need a scope, rings, and a base. I’d recommend a quality, magnum-rated optic like a Leupold VX-3HD or Vortex Viper PST. The receiver is drilled and tapped, so mounting is straightforward. FFL transfer required for firearm purchases, of course.
Q: How does it compare to a Remington 700 or a Tikka T3x?
A: That said, the X-Bolt’s action is often smoother than a stock 700, and the 60° bolt throw is a distinct advantage over both. The Tikka is also fantastic, but the Browning’s trigger and magazine system give it a slight edge for many shooters. It’s a matter of personal preference on feel.
Q: Is the .300 Win Mag too much for Missouri whitetail?
A: Honestly, yes, it’s overkill. It will work, but it’s excessive recoil and meat damage for our deer. This cartridge shines at 300+ yards and on larger game. For most Missouri hunting, a .270 or .30-06 is more practical. This rifle is for a specific, bigger job.
If you’re in the market for a magnum rifle that balances precision, refined handling, and proven performance, the Browning X-Bolt CMSTK deserves a close look. It’s available at firearms-missouri.com for Missouri residents and nationwide. See the full details on our site.
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