Weatherby 307 Adventure SD .240 Weatherby Magnum Rifle

The Weatherby 307 Adventure SD .240 Weatherby Magnum Rifle is a production-grade precision platform that merges classic walnut aesthetics with a modern, aftermarket-friendly action. Chambered in the flat-shooting .240 Wby Mag, this rifle delivers 3,400+ fps muzzle velocities from a 24-inch barrel, paired with a TriggerTech trigger and Accubrake muzzle device for controlled recoil. Built on the Model 307 action, it accepts Remington 700-compatible scope mounts and stocks, giving you the flexibility to upgrade without gunsmithing.

Manufacturer	Weatherby
Model	307 Adventure SD
Caliber	.240 Weatherby Magnum
Barrel Length	24 inches (per manufacturer specs)
Overall Length	44.5 inches
Weight	7.5 lbs (unloaded, per manufacturer specs)
Stock Material	Fancy walnut with rosewood forend/grip cap, maple diamond inlays
Finish	Graphite Black Cerakote (barrel, receiver, bolt)
Trigger	TriggerTech adjustable (2-5 lbs)
Muzzle Device	Accubrake (threaded 5/8-24)
Magazine Capacity	3+1 rounds (detachable box)
Condition	New

Key Features

• Model 307 Action with R700 Footprint — Accepts Remington 700-spec triggers, stocks, and scope bases, letting you swap parts from brands like Timney or Geissele without a gunsmith. Why it matters: You can upgrade the trigger or chassis system to match your shooting style without custom fitting.
• TriggerTech Trigger — A two-stage, adjustable trigger with zero creep and a crisp break at 2-5 lbs. Why it matters: Consistent trigger pull reduces flinch and improves shot-to-shot repeatability at distance.
• Accubrake Muzzle Device — Weatherby’s proprietary brake reduces felt recoil by up to 40% per their internal testing. Why it matters: Less recoil means faster follow-up shots and less fatigue during long range sessions.
• Graphite Black Cerakote Finish — Applied to the barrel, receiver, and bolt for corrosion resistance and low-glare appearance. Why it matters: Cerakote holds up in wet or humid conditions, protecting against rust without adding weight.
• Fancy Walnut Stock with Rosewood Accents — Hand-selected walnut with maple diamond inlays and a rosewood forend/grip cap. Why it matters: Combines classic hunting aesthetics with a stable, free-floated barrel channel for accuracy.

Who It’s For

This rifle is built for the precision-minded hunter who wants a lightweight, fast-handling rifle for mountain or timber work, yet still demands sub-MOA accuracy at 300+ yards. The .240 Weatherby Magnum is a low-recoil, high-velocity round suitable for varmints to medium game like pronghorn and deer. If you value a traditional wood stock but need modern features like a detachable box magazine and R700-compatible aftermarket support, this is your platform.

Pros & Cons

• Pro: TriggerTech trigger is one of the best production triggers on the market—crisp, adjustable, and repeatable.
• Pro: R700 footprint gives you access to hundreds of aftermarket stocks, chassis, and triggers from brands like Timney and Geissele.
• Pro: Accubrake dramatically reduces recoil, making the .240 Wby Mag comfortable for extended shooting sessions.
• Con: The walnut stock is beautiful but heavier than a carbon-fiber or synthetic stock, adding about 0.5-0.75 lbs compared to a lightweight chassis.
• Con: .240 Weatherby Magnum ammunition is less common than .243 Win or 6.5 Creedmoor, so you may need to order online or handload.

Comparison

Feature	Weatherby 307 Adventure SD	Timney Triggers (R700 Trigger Upgrade)	Geissele (Super 700 Trigger)
Type	Complete rifle	Trigger upgrade only	Trigger upgrade only
Trigger Pull	2-5 lbs (adjustable)	1-4 lbs (adjustable)	2-4 lbs (adjustable)
Compatibility	Remington 700 footprint	Remington 700, Weatherby 307	Remington 700
Material	Steel, walnut, Cerakote	Steel, aluminum	Steel, aluminum
Price	$1,999 (rifle)	$150-$250 (trigger only)	$250-$350 (trigger only)

FAQ

Does the Weatherby 307 Adventure SD accept Remington 700 scope bases?

Yes. The receiver is drilled and tapped for Remington 700-pattern scope bases. You can use any standard R700 rail or two-piece base from brands like Nightforce, Leupold, or Vortex.

What is the barrel twist rate on this .240 Weatherby Magnum rifle?

According to Weatherby specs, the barrel has a 1:10-inch twist rate, optimized for bullet weights from 55 to 90 grains.

Can I replace the stock with a chassis system?

Yes. The Model 307 action uses the Remington 700 footprint, so you can drop it into chassis from MDT, KRG, or XLR Industries without modification.

Does the Accubrake come installed or included separately?

It comes pre-installed on the barrel from the factory. The muzzle is threaded 5/8-24, so you can swap to a suppressor or other brake if desired.

What is the magazine capacity and type?

It uses a detachable box magazine with a 3+1 capacity. The magazine is proprietary to Weatherby but easy to load and release.

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Last updated: April 2026

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