Description
Before carbon fiber stocks and Cerakote took over the rifle world, a Weatherby meant rich walnut and deep blued steel. The Mark V Deluxe keeps that tradition alive, and this one does it while chambered in .30-378 Weatherby Magnum, one of the flattest-shooting .30 caliber cartridges ever put in a factory rifle. Pushing heavy bullets at velocities most magnums can only dream about, it is a legitimate long-range elk and mule deer cartridge, and the 26 inch #3 contour barrel with its 1:10 twist gives that big case room to do its work.
Classic Weatherby Looks, Built the Old Way
The gloss AA walnut Monte Carlo stock is the kind of wood that stops people at the gun counter. Fineline diamond-point checkering, a rosewood forend and grip cap set off with maplewood spacers, and a high polish on the barrel, trigger guard, and bolt knob give it that unmistakable Weatherby character. A Pachmayr Decelerator recoil pad caps the buttstock, and combined with the factory-installed Accubrake ST, this rifle is far more pleasant to shoot than the cartridge would suggest.
What the Mark V Deluxe Does at the Range
Every Mark V carries Weatherby's Sub-MOA guarantee: a three-shot group under an inch at 100 yards from a cold barrel with Weatherby factory or premium ammo. The externally adjustable TriggerTech trigger breaks with zero creep and almost no overtravel, and the short 54 degree bolt lift cycles fast while leaving plenty of clearance for a big scope. The receiver comes drilled and tapped with no sights, so plan on glass worthy of the cartridge.
Owning a Mark V Deluxe in .30-378
At 8.25 pounds bare and 48.75 inches overall, this is a full-size rifle that settles in nicely for deliberate shots at distance. It holds 2+1 in this chambering, which is realistic for a cartridge this size. If you have been wanting a walnut and blued Weatherby with true long-range reach, this is the one that checks both boxes.
Key Specifications
- Manufacturer Part Number: MDX01N303WR8B
- UPC: 747115440955
- Caliber: .30-378 Weatherby Magnum
- Action: Bolt Action, 54 Degree Bolt Lift
- Capacity: 2+1 Rounds
- Barrel Length: 26" #3 Contour, Threaded
- Twist Rate: 1:10"
- Muzzle Device: Accubrake ST (Factory Installed)
- Stock: Gloss AA Walnut Monte Carlo, Rosewood Forend & Grip Cap, Maplewood Spacers
- Recoil Pad: Pachmayr Decelerator
- Trigger: TriggerTech, Externally Adjustable
- Metal Finish: High Gloss Blued
- Sights: None, Drilled & Tapped Receiver
- Overall Length: 48.75"
- Length of Pull: 13.5"
- Weight: 8.25 lbs
What’s Included
- Weatherby Mark V Deluxe rifle
- Accubrake ST muzzle brake (factory installed)
- Owner's manual
- Factory box
Frequently Asked Questions
Does the Weatherby Mark V Deluxe come with the Accubrake ST installed?
Yes, Weatherby installs the Accubrake ST at the factory on the .30-378 chambering. The barrel is threaded, so you can remove the brake and run a suppressor or thread protector if you prefer. With a case this size, most owners leave the brake on, since it takes a big bite out of felt recoil.
Is the Mark V Deluxe .30-378 covered by Weatherby's accuracy guarantee?
It is. Every Mark V is guaranteed to print a three-shot group of .99 inches or less at 100 yards from a cold barrel when fed Weatherby factory or premium ammunition. That guarantee applies to the original purchaser within two years of verified purchase.
Does this rifle come with sights or a scope rail?
No, it ships without sights, but the receiver comes drilled and tapped from the factory. You will want to add bases, rings, and a quality scope. Given the long-range capability of the .30-378 Weatherby Magnum, it makes sense to pair it with glass that can keep up.
What is the .30-378 Weatherby Magnum good for?
It is one of the fastest .30 caliber cartridges available in a factory rifle, launching heavy bullets at exceptional velocity for a very flat trajectory. That makes it a favorite for long-range elk, mule deer, and open-country hunting where shots can stretch out. The 26 inch barrel on this rifle helps the cartridge reach its full velocity potential.



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