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Weatherby Vanguard Obsidian .300 Win Mag — Threaded Barrel

$657.36

Factory-threaded .300 Win Mag bolt-action with a crisp two-stage match trigger and weather-shedding Monte Carlo stock — ready for suppressors and 1,000-yard steel.

The Weatherby Vanguard Obsidian .300 Win Mag — Threaded Barrel is a production-grade bolt-action that punches well above its price point. Chambered in .300 Winchester Magnum, this rifle delivers the velocity and energy needed for elk, moose, and long-range steel out to 1,000 yards. The factory-threaded barrel (1/2×28 pattern) lets you mount a suppressor, brake, or blast can without sending the action to a smith. With a two-stage match trigger and a weather-shedding synthetic stock, this is a working rifle that doesn’t cut corners where it counts.

Manufacturer Weatherby
Model Vanguard Obsidian
Material 4140 steel barrel, synthetic Monte Carlo stock (per manufacturer specs)
Compatibility .300 Winchester Magnum ammunition, 1/2×28 muzzle devices, Remington 700-pattern scope bases
Finish Black matte Cerakote barrel, black textured synthetic stock
Weight 8.2 lbs (unloaded, per manufacturer specs)
Condition New

Key Features

  • Factory-Threaded Barrel (1/2×28): Why it matters — No gunsmith required for suppressor or muzzle brake installation; direct thread your Dead Air Sandman-S or SilencerCo Omega and stay subsonic-capable without losing zero.
  • Adjustable Two-Stage Match Trigger: Why it matters — The first stage takes up slack cleanly, the second breaks crisp at 2.5-3.5 lbs, reducing pull weight variation that throws shots at distance.
  • Hinged Floorplate with 3-Round Capacity: Why it matters — Faster reloads than a blind magazine, and you can unload the chamber without cycling rounds through the action — critical when moving through brush or crossing fences.
  • 3-Position Safety: Why it matters — Safe, middle position locks trigger but allows bolt manipulation for safe unloading, and fire position delivers instant engagement when that bull elk steps out at 400 yards.
  • Monte Carlo Synthetic Stock with Pillar Bedding: Why it matters — The raised cheekpiece aligns your eye with a 50mm objective scope, and pillar bedding maintains consistent receiver-to-stock torque even in rain or snow.

Who It’s For

This rifle fits the shooter who wants .300 Win Mag performance without a custom build price tag. It’s for the hunter who needs a reliable 1,000-yard capable rifle that can handle a suppressor, and for the precision shooter who values a repeatable trigger over fancy wood. If you’re running a budget for glass and ammo, the Vanguard Obsidian leaves money for a quality optic and enough factory match ammo to validate your dope.

Pros & Cons

  • Pro: Threaded barrel from the factory — saves $150-200 in gunsmith labor for a muzzle brake or suppressor mount.
  • Pro: Two-stage trigger is adjustable and breaks clean — no gritty take-up common in budget rifles.
  • Pro: Monte Carlo stock fits shooters with longer necks or high-mounted scopes without an adjustable cheekpiece.
  • Con: The synthetic stock flexes under bipod pressure at max magnification — consider a chassis upgrade if you’re shooting PRS-style matches.
  • Con: The 3-round magazine capacity is limiting for extended strings on steel — you’ll need to carry spare ammo in a chest rig.

Comparison

Feature Weatherby Vanguard Obsidian .300 Win Mag Ruger American Rifle .300 Win Mag Tikka T3x Lite .300 Win Mag
Barrel Threading Factory 1/2×28 Not threaded (standard model) Factory 5/8×24 (optional)
Trigger Type Two-stage match, adjustable Single-stage, adjustable Single-stage, adjustable
Stock Material Synthetic Monte Carlo Synthetic with aluminum bedding Synthetic with aluminum bedding
Weight 8.2 lbs 7.8 lbs 7.2 lbs
Price (approx.) $587 $550 $750
Warranty Weatherby Lifetime Ruger Lifetime Beretta 2-year

FAQ

What is the barrel twist rate on the Weatherby Vanguard Obsidian .300 Win Mag?

The barrel has a 1:10 twist rate, per manufacturer specs. This stabilizes bullets from 150 to 220 grains — ideal for 180-grain hunting loads and 210-grain Berger VLDs for long-range work.

Can I mount a suppressor directly without an adapter?

Yes. The barrel is threaded 1/2×28, which is a standard 5.56mm thread pitch. Many .30-caliber suppressors use 5/8×24, so you’ll need a 1/2×28 to 5/8×24 adapter or a direct-thread mount that matches 1/2×28. Check your suppressor’s thread spec before ordering.

Does the rifle come with scope bases?

No. The receiver is drilled and tapped for Remington 700-pattern bases. You’ll need to purchase a one-piece or two-piece base set and rings separately. I recommend a 20 MOA rail for long-range shooting.

What is the maximum effective range of this rifle?

With factory match ammunition (e.g., 190-grain Hornady ELD-X), the Vanguard Obsidian is capable of 1,000-yard hits on a 12-inch steel plate. Sub-MOA accuracy is typical with quality ammo. Expect 0.75-1.0 MOA with hunting loads.

Is the trigger adjustable for pull weight?

Yes. The two-stage match trigger has an adjustment screw accessible without removing the stock. Per Weatherby specs, it adjusts from 2.5 to 3.5 pounds. Use a torque wrench to avoid over-tightening.

Trust & Delivery

  • ✅ Nationwide delivery (all 50 states)
  • ✅ Ships 1-2 business days
  • ✅ 30-day returns
  • ✅ Secure checkout

Looking for more options? Check out our Bolt Action Rifles, Muzzle Brakes, or Rifle Scopes categories.

Last updated: April 2026

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SKU: CSSI|XBVTX300NR4T Category:
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