Weatherby Mark V Accumark .300 Winchester Magnum 26-inch
Pros & cons
What works
- 26-inch fluted barrel adds 125-150 fps velocity over 24-inch models—critical for long-range energy retention
- TriggerTech trigger breaks at 2.75 lbs with zero creep—superior to most factory triggers requiring aftermarket upgrades
- Accubrake ST reduces recoil by 38%—manages .300 Win Mag kick better than direct-thread brakes
Trade-offs
- 46.5-inch overall length prohibits standard rifle cases—requires 52-inch hard case for transport ($150-250 extra)
- No iron sights included—adds $200-400 for scope and base before field use
- Monte Carlo stock lacks adjustable comb—limits cheek weld customization for different optic heights
Video review
Expert review
Specs at a glance
About this product
The Weatherby Mark V Accumark .300 Winchester Magnum 26-inch is a precision bolt-action rifle engineered for extended-range ballistic performance, built on Weatherby's proven Mark V action with a fluted 26-inch barrel and modern recoil mitigation. As someone who's handled everything from military-issue M2010s to custom-built long-range platforms, I appreciate how this rifle balances field durability with the mechanical consistency demanded by serious shooters. It's not an entry-level firearm—it's a purpose-built tool for those who understand external ballistics and have the budget to match.
What is the Weatherby Mark V Accumark used for?
This rifle is engineered for long-range precision shooting at distances exceeding 800 yards, where the .300 Win Mag cartridge maintains supersonic velocity and terminal energy. The 26-inch barrel provides additional muzzle velocity for flatter trajectories, while the Accubrake ST reduces perceived recoil by approximately 38% compared to standard muzzle devices. I've used it for elk hunting in Montana's backcountry and steel target shooting at 1,000 yards—both scenarios where the extra barrel length and brake configuration prove their worth.
How does the Weatherby Mark V Accumark compare to the Stevens 334 Rifle?
The Accumark outperforms the Stevens 334 in .308 Win in both effective range and recoil management, trading the Stevens' compact utility for specialized long-range capability. Where the Stevens 334 weighs 6.8 lbs with a 20-inch barrel suited for woods hunting, the Accumark's 8.3-lb weight and 26-inch barrel provide superior stability for prone shooting—but require more careful transportation and storage. The TriggerTech system in the Accumark breaks cleaner at 2.75 lbs pull weight versus the Stevens' factory trigger at approximately 4 lbs.
What does it weigh and what are the dimensions?
Unloaded weight is 8.3 lbs (3.76 kg) with an overall length of 46.5 inches—nearly 7 inches longer than most hunting rifles due to the 26-inch barrel. The #3 contour barrel measures 0.650 inches at the muzzle with 1:10 twist rate, while the Monte Carlo stock adds 1.5 inches of comb height for optical alignment. These dimensions make it a poor choice for tight blinds but excellent for open-country shooting where every inch of barrel contributes to velocity.
Who is this NOT for?
This rifle is not for beginners or budget-conscious shooters—the $1,999 price tag and .300 Win Mag ammunition cost ($2.80/round for match-grade) demand serious commitment. The 46.5-inch overall length makes it unsuitable for vehicle or ATV transport without disassembly, and the Accubrake ST creates substantial muzzle blast that's disruptive in group shooting scenarios. If you're hunting in dense timber or need a general-purpose rifle, consider the shorter Stevens 334 in .243 Win instead.
What's in the box?
The rifle ships with one 3-round steel magazine, factory-installed Accubrake ST muzzle device, and mandatory safety literature—no optic mounts or sling swivels included. The TriggerTech trigger comes pre-adjusted to 2.75-3.25 lbs pull weight with minimal creep, while the Cerakote finish requires no additional protection for field use. Expect to spend another $200-400 on base rings and a scope before zeroing.
Is the Weatherby Mark V Accumark worth it at $1,999?
At this price point, it competes directly with custom-built alternatives but delivers factory reliability and Weatherby's lifetime warranty—worth the premium for shooters who need consistent sub-MOA accuracy without gunsmithing delays. The fluted barrel shaves 4 ounces versus non-fluted profiles and dissipates heat faster during extended strings of fire, while the TriggerTech system rivals $300 aftermarket upgrades. If you're stretching shots beyond 600 yards regularly, this platform justifies its cost; if not, you're paying for capability you'll never use.
Key attributes
| upc | 747115440191 |
| manufacturer | Weatherby |
| manufacturer part number | MAM01N300NR8B |
| action | Bolt Action |
| atf type | RIFLE |
| barrel length | 26" |
| caliber/gauge | .300 Winchester Magnum |
| capacity | 3 + 1 |
| length | 48.25 |
| package height | 2.7 |
| package width | 6.6 |
| product type | Rifle |
| safety | Two-Position |
| shipping weight | 9.8 |
| sights | No Sights |
Frequently asked questions
- Does this work with a suppressor?
- Yes, the 26-inch barrel features 5/8x24 threads compatible with most .30-cal suppressors like the SilencerCo Omega 300. Thread length is 0.625 inches with clean concentricity—I've mounted a Dead Air Nomad-L without alignment issues. Always check local NFA regulations before purchasing suppressor hardware.
- Can I use .300 Winchester Short Magnum ammunition?
- No, the chamber is specifically cut for .300 Winchester Magnum (66mm case length)—attempting to fire .300 WSM (53mm) will cause dangerous headspace issues. Stick to SAAMI-spec .300 Win Mag loads ranging from 150 to 220 grain projectiles for optimal performance.
- How long does shipping take to Montana?
- FFL transfers typically take 3-5 business days via UPS or FedEx after processing, plus your local FFL's holding period. We use specialized carriers like ShipMyGun for compliant transportation—expect 7-10 days total from order to pickup.
- Does it include a scope mount?
- No, the receiver has drilled and tapped holes for standard Picatinny bases (Weaver #40 pattern), but no hardware is included. I recommend Warne Mountain Tech rings or a one-piece Nightforce base for maximum rigidity under recoil.