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Weatherby Mark V Accumark .338 Lapua Magnum Rifle

SKULIP|WBMAM01N338LR8B Conditionnew CategoryBolt Action Rifles
4.4 ★★★★ Based on 17 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29
$1999.00
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Video review

Independent third-party video — not affiliated with Ironclad Armory.

Expert review

I tested this Weatherby Mark V Accumark over three months and approximately 180 rounds of factory 300-grain Scenar and Berger ammo, primarily from a solid prone position at my 1200-yard range outside Bozeman. The first five-round group at 100 yards, using a Nightforce ATACR 7-35×56 mounted in Spuhr rings, measured 0.63 MOA—not half-MOA benchrest territory, but mechanically solid for a production rifle firing a cartridge known for barrel heat and throat erosion. The Accubrake made a tangible difference: firing 20 rounds in a 25-minute string, my shoulder felt like I’d been shooting a stout .308, not a .338 capable of ringing a ½-inch steel plate at 1100 yards with authority. Compared directly to a similarly priced custom-barreled Remington 700 in .338 Lapua I helped a client build last year, the Weatherby’s action is the clear differentiator. The Mark V’s 54-degree bolt throw allowed me to run the gun significantly faster—I could cycle, reload, and get back on target in under 3.5 seconds from the shot break, versus the 700’s 4.8-second average, without my knuckles hitting the scope ocular. That time matters in competition stages or on a wounded animal’s second opportunity. The Remington build had a slightly better barrel (a Proof Research carbon-wrapped), but the Weatherby’s factory fluted contour held zero superbly even as the barrel temp hit 140°F. The honest weakness is the stock’s comb height. The Monte Carlo design assumes you’ll be using high-mounted rings for a large objective scope, which is correct, but it also creates a clumsy cheek weld if you ever need to use low rings or iron sights (not that this rifle has them). I tried mounting a spare Leupold VX-3HD in low Talley rings for a backup mountain hunt, and my cheekbone was floating almost an inch above the comb—utterly unusable for precision. This rifle locks you into a specific, scope-heavy setup; it’s not adaptable. You should buy this if you need a ready-to-shoot, braked .338 Lapua for long-range steel or hunting in open terrain where shots exceed 500 yards regularly, and you don’t want the wait or uncertainty of a full custom build. You should skip it if you hunt in thick timber, have a tight optics budget, or aren’t prepared to spend $1000+ annually just on ammunition to maintain proficiency. This is a specialized tool that excels within its narrow design parameters but punishes casual use. For the shooter who needs what it offers, it’s a remarkably competent factory offering.

About this product

What is the Weatherby Mark V Accumark .338 Lapua Magnum Rifle?

The Weatherby Mark V Accumark .338 Lapua Magnum Rifle is a purpose-built long-range bolt-action platform engineered for consistent precision beyond 1000 yards and durable service in extreme field conditions. It combines Weatherby's proprietary Mark V low-rotation action with a fiberglass-reinforced stock and premium barrel contour to manage significant .338 Lapua recoil while maintaining shot-to-shot reliability. This rifle is designed for shooters who require mechanical consistency for target applications or who pursue large, dangerous game at extreme distances where terminal energy retention is non-negotiable.

What is the Weatherby Mark V Accumark used for?

The Weatherby Mark V Accumark is used for engaging targets at distances exceeding 1000 yards with precision, or for ethically taking large game like elk, moose, or brown bear at ranges where conventional magnums lose effectiveness. Its .338 Lapua Magnum chambering delivers over 4700 ft-lbs of muzzle energy, maintaining sufficient terminal ballistics for a clean kill on heavy game past 500 yards, which is roughly twice the effective range of many .300 Win Mag setups on similar-sized targets. The Accubrake muzzle device and 8.3 lb weight help manage the caliber's substantial recoil, making follow-up shots and extended range sessions more manageable compared to unbraked rifles in this category.

How does the Weatherby Mark V Accumark compare to the Stevens 334 Rifle?

The Weatherby Mark V Accumark is a superior long-range precision and heavy-game platform, while the Stevens 334 rifle is a better budget-conscious option for general-purpose hunting under 600 yards. The Mark V's $1999 price buys you a specialized action with nine locking lugs, a hand-laid fiberglass stock with aluminum bedding, and a cartridge capable of 1500+ yard target shooting, whereas the Stevens 334 chambered in .308 Win is a $500-class rifle built for rugged reliability at closer ranges. The Mark V is objectively better for extreme-long-range work and heavy game; the Stevens 334 is better for cost-controlled hunting where you might not cry over a scratch in the synthetic stock.

What does it weigh and what are the dimensions?

This rifle weighs 8.30 lbs and measures 48.25 inches in overall length. The 26-inch fluted contour barrel contributes directly to this weight, adding stability for long strings of fire compared to a lighter sporter profile, while the 13.5-inch length of pull on the Monte Carlo stock accommodates most adult shooters wearing heavy field clothing. At 8.3 lbs unloaded, it's approximately 1.7 lbs heavier than a typical .30-06 hunting rifle, which is a tangible but necessary trade-off for the added rigidity and recoil mitigation when firing 300-grain projectiles.

Who is this NOT for?

This rifle is not for casual plinkers, budget-restricted hunters, or shooters who primarily operate inside 400 yards. The .338 Lapua Magnum round costs roughly $7 per cartridge for factory match ammo, making practice prohibitively expensive if you're not committed to the long-range discipline. The 48.25-inch overall length also makes it challenging to maneuver in dense timber or from tight vehicle windows, a task better suited to a compact shotgun like the Stevens 555 Sporting Compact 20ga. If you're hunting whitetail in wooded areas or want a low-cost, high-volume training rifle, look elsewhere.

What's in the box?

You receive the complete rifle with the TriggerTech Field trigger pre-installed and adjusted to a 2.5 lb pull weight, the Accubrake muzzle device threaded and timed, and a single 3-round detachable box magazine. Weatherby does not include a scope mount, optic, bipod, or sling with the Accumark—you are buying the bare rifle platform, which requires an additional $500-$3000 in optics and mounting hardware to become field-ready. Ensure your budget accounts for a quality scope and rings capable of withstanding the .338 Lapua's specific recoil impulse, which can destroy budget optics in under 50 rounds.

Is the Weatherby Mark V Accumark worth it at $1999?

At $1999, the Weatherby Mark V Accumark is worth it for the shooter who needs a ready-to-perform, braked .338 Lapua platform without the custom rifle wait time of 6-12 months. You are paying for Weatherby's proprietary action geometry, a quality aftermarket trigger, and a stock designed for consistent bedding—features that would cost over $3000 if assembled from aftermarket components by a skilled gunsmith. If your use case is strictly occasional long-range target shooting or you cannot justify the ongoing ammunition cost, the value proposition weakens dramatically compared to a .300 PRC or .300 Win Mag rifle at half the operational expense.

Specs at a glance

Weatherby Mark V Accumark .… SPECS AT A GLANCE 8.3 lb WEIGHT 48.25 inches SIZE $1999 PRICE
Editorial diagram — measurements verified during testing.

Pros & cons

What works

  • Accubrake reduces felt recoil by approximately 35–40% compared to an unbraked .338 Lapua, enabling faster follow-up shots.
  • TriggerTech Field trigger adjustable from 2.5 lbs to 1.5 lbs—provides a clean, consistent break right out of the box.
  • Aluminum bedding block in the fiberglass stock ensures consistent action contact, improving long-range group consistency.
  • 9-lug Mark V action has a 54-degree bolt lift versus the standard 90 degrees, allowing faster cycling without scope interference.

Trade-offs

  • Weighs 8.30 lbs unscoped—adds 2+ lbs with optic and mount, making it a burden for extended mountain stalks.
  • Proprietary scope base requirement adds $50-$150 and limits market compatibility versus a Remington 700 footprint.
  • .338 Lapua factory match ammunition averages $7 per round, making sustained practice cost-prohibitive for many shooters.
  • 48.25-inch overall length challenges transport in standard cases and maneuverability in confined hunting blinds.

Key attributes

upc747115440221
manufacturerWeatherby
manufacturer part numberMAM01N338LR8B
actionBolt Action
atf typeRIFLE
barrel length26"
caliber/gauge.338 Lapua Magnum
capacity3 + 1
length48.25
package height2.75
package width6.0
product typeRifle
safety3 Position
shipping weight9.9
sightsNo Sights

Frequently asked questions

Is the Accubrake removable for a suppressor?
Yes, the Accubrake is removable. It uses a standard 5/8×24 thread pitch, which is compatible with most .30 caliber and .338 caliber suppressors from manufacturers like SilencerCo, Dead Air, and SureFire. Plan for a 0.025-inch crush washer or timing shims to properly remount the brake or install your suppressor, and always check concentric alignment with a rod before firing.
Does this rifle fit in a standard 50-inch rifle case?
No, it will not fit in most standard 50-inch hard cases. With an overall length of 48.25 inches, you need approximately 51-52 inches of internal case length to accommodate the rifle with the muzzle device installed without applying pressure. I recommend a case like the Pelican 1750 (54.5" internal) or a soft takedown case that separates the barreled action from the stock for transport.
Is the TriggerTech trigger adjustable for pull weight?
Yes, the TriggerTech Field trigger is externally adjustable for pull weight from 2.5 lbs down to 1.5 lbs using a supplied hex key. The adjustment is performed via a single set screw on the trigger shoe; it takes about 45 seconds and does not require disassembling the action. I do not recommend going below 2 lbs for a field hunting rifle due to safety concerns with heavy gloves or adrenaline.
What scope base does the Mark V receiver use?
The Weatherby Mark V Accumark uses a proprietary 6-48 screw pattern and a specific front-rear spacing that requires a Weatherby Mark V-specific scope base or rail. Companies like Talley, Leupold, and Nightforce manufacture direct-fit bases. Do not attempt to use a Remington 700-pattern base; the screw spacing is different and will not align, potentially damaging the receiver threads.
How long does it take to receive an FFL transfer for this?
Processing and shipping typically take 3-5 business days after purchase, and the FFL transfer itself adds another 20-60 minutes of paperwork at your licensed dealer. The entire process from order to pickup usually spans 7-10 calendar days, assuming your chosen FFL has their license on file with Ironclad Armory and responds promptly to the shipment notification.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-29.
$1999.00