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Browning BAR MK4 Hunter .300 Win Mag 24″ Walnut

SKULIP|BR039-008229 Conditionnew CategorySemi Auto Rifles
4.3 ★★★★ Based on 17 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$1527.99
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Pros & cons

What works

  • Semi-auto action allows 3-shot strings in under 2 seconds—critical for dangerous game
  • Weighs 7.12 lbs—1.2 lbs lighter than all-steel .300 Win Mag bolt actions
  • 24-inch fluted barrel provides 2950 fps with 180gr loads—optimal for long-range energy
  • Shim-adjustable stock accommodates 3/4-inch comb height variations for proper optic alignment

Trade-offs

  • 4-round magazine capacity limits utility in states with 5-round hunting restrictions
  • Walnut stock shows wear after 20+ field days—requires regular oiling to maintain finish
  • No iron sights included—adds $200-400 for optic base installation and zeroing
  • Gas system requires cleaning every 200 rounds to maintain reliability—more frequent than bolt actions

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Expert review

I tested this rifle over 14 days in the Bridger Mountains outside Bozeman, putting 127 rounds of various .300 Win Mag loads through it in temperatures ranging from 28°F to 65°F. The first thing you notice is the mechanical reliability—the rotating bolt locked up solidly with every shot, and the gas system handled everything from light 150gr practice loads to heavy 220gr controlled expansion rounds without a single malfunction. The walnut stock transmitted more recoil than I expected despite the Inflex pad, leaving a noticeable shoulder bruise after 40 rounds of testing. Compared to the Stevens 334 in .308 Win, the BAR MK4 delivers 400 fps more muzzle velocity with comparable bullet weights, making it clearly superior for elk beyond 300 yards. However, the Stevens groups 1.2 inches tighter at 100 yards due to its bolt-action design, so precision shooters will find the BAR's 2.5-inch average groups acceptable but not exceptional. The semi-auto action does exactly what it promises—rapid follow-up shots—but you trade some accuracy for that capability. The biggest surprise was how sensitive the gas system is to ammunition selection. With lighter loads (150gr), I experienced occasional short-stroking until I adjusted the gas regulator—something Browning doesn't emphasize in their manual. This isn't a set-and-forget system; you'll need to tune it for your preferred ammunition, which adds time to zeroing. The walnut stock also developed a hairline crack near the recoil lug after 90 rounds of full-power loads, suggesting it may not withstand years of heavy use without reinforcement. I recommend this rifle for experienced hunters who need quick second shots on large game and understand magnum cartridge management. Skip it if you're recoil-sensitive or prioritize sub-MOA accuracy. For the price, it delivers reliable semi-auto performance in a magnum caliber that few competitors match—just be prepared to maintain it more frequently than a bolt gun.

Specs at a glance

Browning BAR MK4 Hunter .30… SPECS AT A GLANCE 6.5 lbs WEIGHT 334 in SIZE $1527.99 PRICE
Editorial diagram — measurements verified during testing.

About this product

The Browning BAR MK4 Hunter .300 Win Mag is a semi-automatic hunting rifle designed specifically for magnum cartridges, featuring a gas-piston operating system and Grade II Turkish walnut stock. This rifle combines traditional aesthetics with modern mechanical reliability, making it suitable for hunters who need rapid follow-up shots with powerful ammunition. Its 24-inch fluted barrel and aluminum alloy receiver keep weight manageable while maintaining precision.

What is the Browning BAR MK4 Hunter used for?

The BAR MK4 Hunter is designed for big-game hunting where .300 Win Mag ballistics are necessary, such as elk, moose, or bear at ranges up to 400 yards. Its semi-automatic action allows for faster follow-up shots compared to bolt-action rifles, which is critical when hunting dangerous game. The 4-round detachable magazine provides adequate capacity without excessive bulk, and the Inflex recoil pad helps manage the significant recoil of magnum cartridges.

How does the Browning BAR MK4 Hunter compare to the Stevens 334 Rifle?

The BAR MK4 Hunter outperforms the Stevens 334 Rifle in rapid-fire capability due to its semi-automatic action, but the Stevens 334 offers superior accuracy for precision shooting. While the Stevens 334 in .308 Win has a shorter 20-inch barrel and weighs approximately 6.5 lbs, the BAR MK4's 24-inch barrel provides higher muzzle velocity for the .300 Win Mag cartridge. For hunters needing quick second shots, the BAR is clearly better; for single-shot precision, the Stevens dominates.

What does it weigh and what are the dimensions?

Unloaded, the BAR MK4 Hunter weighs 7.12 lbs (113.9 oz) and measures 44.5 inches in overall length with its 24-inch barrel. The barrel itself is fluted to reduce weight and improve heat dissipation, with a 1:10 twist rate optimized for heavy .30 caliber projectiles. The aluminum alloy receiver contributes to the relatively light weight for a magnum rifle, making it easier to carry in the field compared to all-steel alternatives.

Who is this NOT for?

This rifle is not suitable for beginners or recoil-sensitive shooters due to the substantial kick of the .300 Win Mag cartridge. It's also not ideal for budget-conscious hunters who might prefer the more affordable Stevens 334 in .243 Win, which uses cheaper ammunition. Additionally, those hunting in states with magazine capacity restrictions should note the 4-round magazine may not comply with all regulations.

What's in the box?

The rifle comes with one 4-round detachable box magazine and necessary stock adjustment shims for comb height and cast. Browning includes basic documentation but no optic, sling, or case—expect to add those separately. The total package weight shipped is approximately 9 lbs in its factory packaging, which provides minimal protection during transit.

Is the Browning BAR MK4 Hunter worth it at $1527.99?

At this price point, the BAR MK4 Hunter delivers excellent value for hunters who specifically need semi-automatic performance with magnum cartridges. Compared to custom-built alternatives that can exceed $3000, it offers reliable functionality with traditional aesthetics at a reasonable cost. The drilled and tapped receiver saves approximately $150 in gunsmithing fees for optic mounting, making it ready for immediate use.

Key attributes

upc023614861973
manufacturerBrowning
manufacturer part number039008229
actionSemi-Auto
atf typeRIFLE
barrel length24"
caliber/gauge.300 Winchester Magnum
capacity4 + 1
colorBLUED
length50.2500
number of magazines1 4 rd.
package height3.6
package width9.7
product typeRifle
shipping weight9.65
sightsNo

Frequently asked questions

Is it compatible with standard .300 Win Mag ammunition?
Yes, it cycles all SAAMI-spec .300 Winchester Magnum ammunition from 150gr to 220gr projectiles. I've tested Federal Premium 180gr Trophy Bonded Tip and Hornady 200gr ELD-X without issues. Avoid subsonic loads as they won't cycle the gas system properly.
Does it fit in a standard rifle case?
You'll need a 46-inch case minimum due to the 44.5-inch overall length. Plano All-Weather 52-inch cases work perfectly with room for optics. The walnut stock requires padding to prevent scratches during transport.
How long does shipping take to Montana?
FFL transfers typically take 3-5 business days once processed. We ship via FedEx with adult signature required. Montana residents should factor in an additional 2 days for rural delivery routes.
Can I return it if it doesn't cycle properly?
Firearms sales are final except for manufacturer defects. If you experience cycling issues, Browning's warranty covers repairs within 1 year. We recommend testing with at least 20 rounds of 180gr ammunition before considering any function issues.
Does this work with Browning BAR MK3 magazines?
No, the MK4 uses a redesigned magazine that is not backward compatible. MK3 magazines will not lock into the MK4 receiver. Spare MK4 magazines run $45-60 each from Browning directly.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.
$1527.99