Description
There's something about a walnut-stocked rifle in .375 H&H Magnum that just feels right. This cartridge has been putting down the biggest game on earth for over a century, and Weatherby wrapped it in a rifle that looks the part. The Adventure SD wears a fancy walnut stock with a rosewood forend and grip cap, complete with a maple diamond inlay and spacers. It's the kind of rifle you'll catch yourself admiring in the safe, then trust completely when a moose, brown bear, or Cape buffalo is standing in front of you.
Built on the Model 307 Action
Underneath the traditional wood is Weatherby's first new action in over 50 years, machined at their Sheridan, Wyoming headquarters. The Model 307 is a two-lug, fully cylindrical push-feed action built on the familiar 700 footprint, which means it plays nice with a huge range of aftermarket stocks, triggers, rails, and bases. The bolt breaks down without tools for easy cleaning in camp, and the TriggerTech Field trigger delivers a crisp, zero-creep break that's externally adjustable down to around 2.5 pounds. The whole works, receiver, bolt, and fluted barrel, is coated in Graphite Black Cerakote, so it shrugs off weather and rough handling far better than traditional bluing.
Taming the .375 H&H
Let's be real, .375 H&H has a reputation, and that's where the included Accubrake earns its keep. The radial design disperses gas evenly and cuts felt recoil by up to 53 percent, turning a shoulder-thumper into something you can practice with all afternoon. The 24 inch fluted barrel runs a 1:12 twist that stabilizes the full range of .375 bullet weights, and the muzzle wears suppressor-ready 5/8-24 threads if you'd rather run a can. Rounds feed from a traditional hinged floorplate, and Weatherby backs the rifle with a sub-MOA guarantee: a three-shot group under an inch at 100 yards from a cold barrel with factory or premium ammo.
Why the 307 Adventure SD Earns a Spot in the Safe
This is the rifle for the hunter who wants dangerous-game capability with old-school character and new-school performance. Custom rifle feel, production rifle availability, built in Wyoming.
Key Specifications
- Manufacturer: Weatherby
- Model: Model 307 Adventure SD
- Manufacturer Part Number: 3WASD375HR6B
- UPC: 747115463282
- Caliber: .375 H&H Magnum
- Action: Bolt Action, 2-Lug Push Feed (700 Pattern)
- Barrel Length: 24 in, Fluted
- Twist Rate: 1:12
- Muzzle: 5/8-24 Threaded with Accubrake
- Capacity: 3+1, Hinged Floorplate
- Trigger: TriggerTech Field, Adjustable to 2.5 lbs
- Stock: Fancy Walnut with Rosewood Forend and Grip Cap
- Metal Finish: Graphite Black Cerakote
- Overall Length: 48.6 in
- Sights: None, Drilled and Tapped for Optics
- Accuracy Guarantee: Sub-MOA (3-Shot Group Under 1" at 100 Yards)
What’s Included
- Weatherby 307 Adventure SD rifle in .375 H&H Magnum
- Accubrake muzzle brake (factory installed)
- Owner's manual
Frequently Asked Questions
Is the Weatherby 307 Adventure SD suppressor ready?
Yes. In .375 H&H the muzzle comes threaded 5/8-24, which is the common standard for larger-bore suppressors and muzzle devices. Just spin off the included Accubrake and mount your can directly.
Does the 307 Adventure SD come with sights or a scope rail?
No iron sights are included, so plan on running an optic. The receiver is built on the 700 footprint, which means scope bases and rails for that pattern are everywhere and easy to find. That gives you a ton of flexibility on rings and mounts.
How bad is the recoil on a .375 H&H like this?
The .375 H&H is a stout cartridge, no way around it, but the factory Accubrake makes a huge difference, cutting felt recoil by up to 53 percent. Combined with the rifle's solid heft, it's very manageable and comfortable enough for real practice sessions. Most folks are surprised how shootable it is.
Does the Weatherby 307 use a detachable magazine?
No, this model feeds from a traditional hinged floorplate with a 3+1 capacity in .375 H&H. It's a classic setup a lot of dangerous game hunters prefer since there's no magazine to lose or rattle in the field. You can top-load rounds right through the ejection port.





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