Description
You’re glassing a ridgeline at 400 yards, the wind’s picking up, and you need a rifle that feels like an extension of your own will. That’s the moment you understand the Weatherby Mark V CarbonMark 300 Weatherby Magnum, 26″ Barrel, Black, 3 rd. It’s a purpose-built, long-range hunting rifle that pairs the legendary Mark V action with a modern carbon-fiber wrapped barrel to shed weight without sacrificing the ballistic authority of the 300 Weatherby Magnum cartridge. I’ve put rounds through plenty of magnums, and this one’s balance is what sets it apart.
Here’s the thing—the 300 Weatherby Mag is a serious round, known for its flat trajectory and retained energy at extreme distances. Traditionally, rifles chambered for it are heavy. The CarbonMark changes that equation. Its 26-inch barrel is fluted and wrapped in carbon fiber, which pulls heat away fast and cuts overall weight dramatically. The result is a magnum rifle that comes in around 6.75 lbs, depending on the stock. That’s a weight you’d expect from a mid-sized short-action, not a long-range hammer. This makes a tangible difference when you’re hiking into elk country or setting up for a long shot after a tough climb.
The heart of the system is the iconic Mark V action, renowned for its strength and 54-degree bolt lift. It’s over-engineered for safety, which is exactly what you want with high-pressure magnum cartridges. The action is mated to a composite stock that’s rigid and stable, featuring an aluminum bedding block system. This setup provides consistent contact points—no gunsmithing required for a solid, accurate foundation. It fits out of the box and shoots. The three-round capacity is standard for magnum bolt-actions, keeping the profile sleek. At a price of $3074.73, you’re investing in a legacy action modernized with today’s best weight-saving technology.
| Caliber | 300 Weatherby Magnum |
| Barrel | 26″ Carbon Fiber Wrap, Fluted |
| Action | Mark V Bolt Action |
| Capacity | 3 Rounds |
| Finish | Matte Black |
| Overall Weight | Approx. 6.75 lbs |
Pros & Cons
The pros are significant: stunning power-to-weight ratio, the proven reliability of the Mark V, and reduced felt recoil compared to all-steel magnums thanks to the stock design and muzzle brake. The carbon barrel manages heat and minimizes point-of-impact shift during strings of fire. The con? The 300 Weatherby Magnum ammo isn’t as ubiquitous or cheap as .308 Win—you’ll want to handload or budget for premium factory rounds from brands like Nosler or Hornady to truly exploit its potential. And while the weight is low, the overall length with a 26-inch barrel requires thoughtful consideration in tight blinds or thick timber.
Who It’s For
This rifle is for the hunter who covers ground. Think Western elk and mule deer hunters, open-country pronghorn pursuers, or anyone who needs a rifle capable of ethical shots at extended ranges but refuses to be anchored by a 10-pound rig. It’s also a superb platform for long-range steel shooters who appreciate a lightweight, hard-hitting rifle. It’s available at firearms-missouri.com for Missouri residents and nationwide, ready for those high-country adventures.
Frequently Asked Questions
Q: Is the carbon fiber barrel durable?
A: Absolutely. The carbon fiber wrap is under tension, adding compressive strength to the steel liner. It’s rigid, reduces harmonic vibration for consistency, and is highly resistant to environmental elements. It’s a performance upgrade, not a compromise.
Q: Can I mount a standard scope base?
A: Yes. The Mark V receiver is drilled and tapped for a standard scope base. Popular models from Warne, Leupold, or Nightforce will mount directly, allowing you to pair it with high-magnification optics from brands like Vortex Razor or Zeiss Conquest.
Q: How is the recoil with such a light magnum?
A: Manageable, but stout. The factory muzzle brake is effective, and the stock design helps. Recoil is sharper than a heavy-barreled .300 Win Mag but less than a traditional wood-stocked .300 Weatherby. Using a quality limbsaver pad and proper shooting technique is recommended.
If you’ve been waiting for a magnum that doesn’t weigh you down, the CarbonMark is the one to handle. See the full details on our site.
Reviews
There are no reviews yet.