Description
The .257 Weatherby Magnum has been the flat-shooting darling of Western hunters for decades, and the Vanguard Obsidian gives you a proper home for it without the custom-shop price tag. This is a working rifle in every sense: blued metalwork, a matte black polymer Monte Carlo stock with a raised comb for solid cheek weld, and a build that shrugs off rain, dust, and rough truck rides. At 7.5 pounds with a 44.5 inch overall length, it carries well for a magnum-length rifle and settles in nicely on the shoulder.
What Makes the Vanguard Obsidian Shoot
The heart of the rifle is a 24 inch cold hammer-forged barrel with a 1:10 twist, threaded 1/2×28 so you can spin on a brake or suppressor without a trip to the gunsmith. Weatherby backs it with their Sub-MOA guarantee, meaning a three-shot group of .99 inches or better at 100 yards with Weatherby factory or premium ammo. The adjustable two-stage match trigger breaks clean and helps you make good on that promise, while the one-piece machined receiver with integral recoil lug keeps everything anchored under magnum recoil. An M16-style extractor and fully enclosed bolt sleeve round out an action that has earned its reputation for running smooth and cycling reliably.
A .257 Wby Mag Built for the Field
This chambering is right at home on pronghorn, deer, and sheep hunts where shots stretch out and wind matters. The 24 inch tube lets the cartridge do what it was designed to do, pushing bullets fast and keeping trajectories flat well past where most cartridges start dropping off. The hinged floorplate magazine holds three rounds plus one in the chamber, and the three-position safety lets you cycle the bolt with the trigger blocked, a genuinely useful feature when unloading in the field. There are no sights on board, so plan on a quality scope and rings. Pair it with good glass and this rifle will earn its keep season after season.
Key Specifications
- Model: Vanguard Obsidian
- Manufacturer Part Number: VTX257WR4T
- UPC: 747115454402
- Caliber: .257 Weatherby Magnum
- Action: Bolt Action
- Barrel Length: 24 in., cold hammer-forged
- Muzzle Threads: 1/2×28
- Twist Rate: 1:10
- Capacity: 3+1, hinged floorplate
- Trigger: Adjustable two-stage match
- Safety: 3-Position
- Stock: Black polymer Monte Carlo with raised comb
- Overall Length: 44.5 in.
- Length of Pull: 13.5 in.
- Weight: 7.5 lbs
- Sights: None, receiver drilled and tapped for scope bases
What’s Included
- Weatherby Vanguard Obsidian rifle
- Owner's manual
Frequently Asked Questions
Does the Weatherby Vanguard Obsidian come with the Sub-MOA guarantee?
Yes. Weatherby guarantees a three-shot group of .99 inches or less at 100 yards when using specified Weatherby factory or premium ammunition. That guarantee applies to the whole Vanguard line, and the cold hammer-forged barrel and two-stage match trigger are a big part of why these rifles deliver on it.
Is the barrel threaded, and what is the thread pitch?
The 24 inch barrel is threaded with a 1/2×28 pattern, so it is ready for a muzzle brake or suppressor right out of the box. A brake is worth considering with this chambering, since the .257 Wby Mag has some bark and taming muzzle rise makes spotting your own hits a lot easier.
What is the .257 Weatherby Magnum best suited for?
It is one of the flattest-shooting commercial cartridges around, which makes it a favorite for pronghorn, mule deer, whitetail, and sheep in open country. The speed and flat trajectory take a lot of guesswork out of longer shots. The 24 inch barrel on this rifle helps the cartridge reach its full velocity potential.
Does the Vanguard Obsidian include sights or a scope?
No, it ships without sights or optics. The receiver is set up for scope bases, so you will want to add rings and a quality scope before heading to the range. Given how flat this cartridge shoots, glass in the 3-15x or 4-16x range pairs with it nicely.




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