Description
There is a reason the .280 Ackley Improved has become a favorite among western hunters, and pairing it with a 5.4 pound rifle makes a whole lot of sense. The Mark V Backcountry 2.0 takes Weatherby's proven steel Mark V action and wraps it in a package built for long miles and thin air. The Peak 44 Blacktooth stock is one of the lightest production aerospace-grade carbon fiber stocks made, and the number one contour fluted barrel keeps weight down without giving up the 24 inches you want to get the most out of this cartridge.
What Makes the Backcountry 2.0 Carry So Well
Everything on this rifle earned its place. The bolt body wears deep spiral fluting that trims ounces and cuts bearing surface for a slicker cycle, and the skeletonized aluminum bolt knob threads onto the handle so you can swap it if you like. The famous 54 degree bolt lift means faster follow-up shots and plenty of clearance under low-mounted scopes. Up front, the Accubrake ST blends into the muzzle profile with 30 symmetrical ports that knock felt recoil down dramatically, and the 3DHEX printed recoil pad soaks up what is left with collapsing internal lattice structures. In a mild cartridge like the .280 AI, this thing is downright pleasant to shoot.
A Mark V Backcountry Built to Make the Shot Count
Weatherby backs this rifle with a sub-MOA accuracy guarantee, and the TriggerTech trigger does its part with a crisp, zero-creep break that is externally adjustable. The Patriot Brown Cerakote covers the barreled action for real weather resistance, while the exposed carbon stock gets green and brown sponge accents that look sharp in the field. The receiver comes drilled and tapped for optics, the muzzle is threaded 1/2×28 under the brake, and the internal magazine holds four rounds plus one in the chamber. If your season involves more climbing than sitting, this is the kind of rifle you stop noticing on your shoulder and start appreciating at the moment of truth.
Key Specifications
- Manufacturer Part Number: MBC20N280AR6B
- UPC: 747115448449
- Caliber: .280 Ackley Improved
- Action: Mark V Bolt Action, 54 Degree Bolt Lift
- Capacity: 4 + 1
- Barrel Length: 24", Fluted #1 Contour, Threaded 1/2×28
- Muzzle Device: Accubrake ST
- Overall Length: 46"
- Weight: 5.4 lbs
- Stock: Peak 44 Blacktooth Carbon Fiber with Green/Brown Sponge Accents
- Recoil Pad: 3DHEX 3D Printed
- Trigger: TriggerTech, Externally Adjustable
- Metal Finish: Patriot Brown Cerakote
- Length of Pull: 13.5"
- Sights: None, Drilled and Tapped for Optics
- Accuracy: Sub-MOA Guarantee
What’s Included
- Weatherby Mark V Backcountry 2.0 rifle
- Accubrake ST muzzle brake (factory installed)
- Owner's manual
Frequently Asked Questions
How accurate is the Mark V Backcountry 2.0 in .280 Ackley Improved?
Weatherby backs this rifle with a sub-MOA accuracy guarantee, meaning it will print three shots under an inch at 100 yards with premium factory ammo. The TriggerTech trigger with its zero-creep break makes it easier to get everything out of that barrel. The .280 AI itself is known as an inherently accurate, efficient cartridge, so the pairing works well.
Can I run a suppressor on the Backcountry 2.0 instead of the muzzle brake?
Yes. The Accubrake ST threads off the muzzle, and the barrel is threaded 1/2×28 underneath, so you can attach a suppressor or a thread protector. Just keep in mind that removing the brake will increase felt recoil, though the .280 AI is pretty manageable either way, especially with the 3DHEX recoil pad.
Does the Weatherby Backcountry 2.0 use a detachable magazine?
No, it feeds from an internal magazine with a hinged floorplate holding four rounds, plus one in the chamber for a total of five. That design keeps weight down and eliminates a magazine you could lose in the field, which fits the whole purpose of this rifle.
Why choose .280 Ackley Improved for this rifle?
The .280 AI pushes 7mm bullets at speeds approaching 7mm Remington Magnum territory while burning less powder and producing noticeably less recoil. In a 5.4 pound rifle, that softer shove matters, and the cartridge shoots flat enough for cross-canyon work on deer, antelope, and elk. It is one of the best matches you will find for a true lightweight mountain gun.




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