Description
The Accumark has been Weatherby's go-to long-range hunting rifle for decades, and this .338 Lapua Magnum version is the one you reach for when the shots get long and the game gets big. Everything starts with the Mark V action, a nine-lug design with a short 54 degree bolt lift that cycles fast and lets you mount your scope nice and low over the bore. The fluted one-piece bolt runs smooth, and the whole platform was built from day one to handle heavy magnum pressures without complaint.
What Makes the Mark V Accumark Shoot
Weatherby hangs a 26 inch fluted #3 contour barrel on this rifle, capped with the Accubrake ST muzzle brake. That brake matters in a big way here, because .338 Lapua produces real recoil and the Accubrake takes a serious bite out of it, letting you spot your own hits instead of picking yourself up off the bags. The TriggerTech Field trigger breaks with zero creep and almost no overtravel, and it adjusts externally so you can dial it to your liking. A 1:9.3 twist stabilizes the heavy, high-BC bullets this cartridge was born to launch. Weatherby backs it all with their sub-MOA promise: a three-shot group of .99 inches or better at 100 yards from a cold barrel with Weatherby factory or premium ammo.
A Stock Built for Real Field Use
The hand-laid fiberglass Monte Carlo stock rides on aluminum bedding blocks, which keeps your point of impact consistent whether it is bone dry in September or sleeting sideways in November. The raised comb lines your eye up naturally behind a scope, and the matte gel coat with spiderweb accents shrugs off the dings and weather that would have a wood stock looking rough after one season. At 8.3 pounds bare and 48.25 inches overall, it carries reasonably for a rifle in this class.
The receiver is drilled and tapped and ships without sights, so plan on a quality scope with plenty of elevation travel. Feeding from a 3+1 capacity, this is a purpose-built rig for elk, moose, big bears, and steel way out past where most hunting rifles run out of steam.
Key Specifications
- Manufacturer: Weatherby
- Model: Mark V Accumark
- MPN: MAM01N338LR8B
- UPC: 747115440221
- Caliber: .338 Lapua Magnum
- Action: Mark V Bolt Action, 9-Lug
- Barrel Length: 26" Fluted, #3 Contour
- Twist Rate: 1:9.3"
- Muzzle Device: Accubrake ST Muzzle Brake
- Trigger: TriggerTech Field, Externally Adjustable
- Capacity: 3 + 1
- Stock: Hand-Laid Fiberglass Monte Carlo with Aluminum Bedding Blocks
- Overall Length: 48.25"
- Weight: 8.3 lbs
- Length of Pull: 13.625"
- Sights: None, Drilled and Tapped for Scope Mounts
What’s Included
- Weatherby Mark V Accumark rifle
- Accubrake ST muzzle brake (installed)
- Owner's manual
- Cable lock
Frequently Asked Questions
Does the Weatherby Mark V Accumark come with a sub-MOA accuracy guarantee?
Yes. Weatherby guarantees the Mark V will print a three-shot group of .99 inches or less at 100 yards from a cold barrel when fed Weatherby factory loads or premium ammunition. That is a strong promise for a hunting rifle, and the Accumark's fluted barrel and bedded fiberglass stock are a big part of why they can make it.
How bad is the recoil on a .338 Lapua Accumark?
.338 Lapua is a stout cartridge, no way around that, but the factory-installed Accubrake ST makes a dramatic difference. Weatherby's brakes are known for cutting felt recoil substantially, and combined with the 8.3 pound weight and Monte Carlo stock design, this rifle is far more pleasant to shoot than the caliber suggests. Ear protection is a must with the brake, though, especially for anyone standing beside you.
Does the Mark V Accumark come with sights or a scope?
No, it ships without sights or optics. The receiver comes drilled and tapped for scope mounts, so you just need bases, rings, and glass. Given the long-range potential of .338 Lapua, it is worth pairing this rifle with a quality scope that has generous elevation adjustment.
What is the barrel length with the muzzle brake installed?
The barrel itself measures 26 inches, and the Accubrake ST adds roughly 2 more inches, bringing it to about 28 inches at the muzzle. Overall length of the rifle is 48.25 inches. That 26 inch tube gives the .338 Lapua the velocity it needs to perform at extended range.



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