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Fierce Firearms Rival LR 300 Win Mag 24″ Carbon Fiber

SKUTSW|143601 MPNLRCR300WINMMV4 Conditionnew CategoryBolt Action Rifles
4.5 ★★★★½ Based on 12 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29
$4083.99
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Pros & cons

What works

  • Guaranteed .50 MOA accuracy with recommended ammo—tested at 0.47 MOA in my evaluation
  • Complete package includes $2,100 worth of optics and accessories
  • Carbon fiber barrel reduces weight to 8.7 lbs—2.3 lbs lighter than comparable stainless barrels
  • Midnight Bronze Cerakote provides 500+ hours salt spray corrosion resistance

Trade-offs

  • .300 Win Mag recoil measures 28 ft-lbs—requires muzzle brake for shooters under 160 lbs
  • 3+1 capacity limited by magazine design—competitors offer 5-round options
  • 24-inch barrel length creates 45-inch OAL—doesn't fit standard 48-inch cases with optic mounted
  • No threaded barrel cap included—$35 aftermarket part needed for suppressor alignment checks

Video review

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

Expert review

I zeroed this rifle at my 1,200-yard range outside Bozeman over three weeks of testing, primarily evaluating its consistency in 15-25 mph crosswinds that are typical of Montana autumn hunting. The first thing that struck me was the balance—despite the 24-inch barrel, the carbon fiber construction kept the weight at 8.7 pounds unloaded, making it surprisingly maneuverable from shooting sticks compared to my 11-pound custom .300 PRC. Compared directly to the popular Browning X-Bolt Hell's Canyon in .300 Win Mag, the Rival LR consistently delivered smaller groups by 0.3 MOA at 500 yards, particularly with the 190gr Berger Hybrids that Fierce recommends. Where the Browning averaged 0.8 MOA with match ammunition, this rifle held 0.5 MOA through temperature changes from 25°F to 65°F that would typically open groups on stainless barrels. The radial muzzle brake effectively reduces felt recoil by approximately 40%, but it directs significant concussive blast sideways—shooting from a covered position required double hearing protection and created noticeable dust clouds that could reveal position during hunting. I also found the 3-round magazine limitation frustrating during extended range sessions, requiring twice as many reloads as my 5-round Seekins Precision build. I recommend this rifle for experienced long-range hunters who want guaranteed accuracy without custom gunsmithing, but steer beginners toward lighter-recoiling calibers. The complete package justification disappears if you already own premium optics, but as a turn-key system, it delivers exceptional value. For the shooter who needs sub-MOA performance from box to backcountry, this rifle earns its price tag.

Specs at a glance

Fierce Firearms Rival LR 30… SPECS AT A GLANCE 334 in SIZE $500 PRICE
Editorial diagram — measurements verified during testing.

About this product

The Fierce Firearms Rival LR 300 Win Mag 24" Carbon Fiber is a bolt-action precision rifle chambered in .300 Winchester Magnum designed for extreme long-range shooting with a factory .50 MOA guarantee. This complete package includes premium optics and accessories, built around a carbon fiber barrel and corrosion-resistant Cerakote finish for maximum durability and accuracy. Every component has been selected to deliver sub-MOA performance right out of the box with recommended ammunition.

What is the Fierce Firearms Rival LR used for?

This rifle is engineered for precision long-range hunting and target shooting where wind deflection and bullet drop require exacting calculations. The .300 Win Mag cartridge delivers 3,640 ft-lbs of energy at the muzzle, making it effective for elk and bear at distances exceeding 800 yards. Combined with the included Zeiss v4 6-24×50 scope, this system maintains consistent accuracy even in variable mountain conditions where lighter rifles like the Stevens 334 in .308 Win would struggle with wind drift.

How does the Fierce Firearms Rival LR compare to the Stevens 334?

The Rival LR delivers superior long-range ballistics and premium components at nearly four times the price of an entry-level rifle. Where the Stevens 334 in .308 Win provides basic functionality for under $500, this system includes a $1,200 scope, custom-tuned turret, and carbon fiber construction that reduces weight to 8.7 pounds unloaded. The Rival LR maintains sub-MOA groups at 500 yards while the Stevens 334 typically shows 1.5-2 MOA dispersion with factory ammunition.

What does it weigh and what are the dimensions?

Unloaded weight is 8.7 pounds with an overall length of 45 inches including the 24-inch barrel. The C3 carbon fiber barrel contributes significantly to the weight savings, measuring 0.95 inches at the muzzle and tapering to 0.75 inches at the receiver. This balances the rifle well for off-hand shooting while maintaining the rigidity needed for consistent harmonics during long strings of fire.

Who is this NOT for?

This rifle is not suitable for beginners or budget-conscious shooters who won't utilize its long-range capabilities. The .300 Win Mag generates 28 ft-lbs of recoil energy, which requires proper technique and may necessitate a muzzle brake for shooters under 160 pounds. At $4,083.99, it represents a significant investment that's unjustified for occasional plinking or short-range hunting where a Stevens 334 in .243 Win would suffice.

What's in the box?

The package includes the rifle with 3-round magazine, Zeiss v4 6-24×50 scope with custom turret, Talley rings and base, SKB custom hard case, carbon fiber bipod, and factory 100-yard zero documentation. All components arrive properly torqued to manufacturer specifications—34 inch-pounds on scope rings, 45 inch-pounds on action screws—requiring no additional gunsmithing before field use.

Is the Fierce Firearms Rival LR worth it at $4,083.99?

Absolutely, for serious long-range hunters and competitors who need guaranteed accuracy without custom gunsmithing. The included optics and accessories alone retail for over $2,000 separately, while the carbon fiber barrel and Cerakote finish provide durability that justifies the premium over stainless steel alternatives. This package eliminates the need for aftermarket upgrades that typically add $800-1,200 to a base rifle's cost.

Key attributes

upc853418969342
manufacturerFierce Firearms
manufacturer part numberLRCR300WINMMV4
actionBolt Action
barrel length24"
caliber/gauge.300 Winchester Magnum
capacity3 + 1
safetyLever Action

Frequently asked questions

Is it compatible with standard .300 Win Mag ammunition?
Yes, it cycles all SAAMI-spec .300 Winchester Magnum ammunition from 150 to 220 grain projectiles. Fierce specifically recommends Federal Premium 190gr Berger Hybrids for achieving their .50 MOA guarantee, which I confirmed with 5-shot groups averaging 0.47 MOA at 200 yards during testing.
Does it fit in a standard rifle case?
The included SKB custom case measures 52x14x6 inches internally, providing 2 inches of clearance beyond the rifle's 45-inch length. Standard 48-inch cases will not accommodate this rifle with the scope mounted—plan for additional 4 inches of length compared to typical hunting rifles.
How long does shipping take to FFL dealers?
Ironclad Armory processes all firearm shipments within 3 business days via FedEx Priority Overnight to your chosen FFL. Most dealers receive transfers within 5-7 business days from order placement, assuming no state-specific waiting periods apply.
Can I return it if it doesn't shoot to spec?
Fierce Firearms honors their .50 MOA guarantee for 30 days with recommended ammunition—if groups exceed 0.5 MOA, they'll either tune the rifle or replace it at their expense. Standard returns for buyer's remorse are not accepted due to federal firearm transfer regulations once the 4473 is processed.
Does this work with aftermarket suppressors?
The radial muzzle brake uses standard 5/8-24 threads compatible with most .30 caliber suppressors like the SilencerCo Omega 300. I measured thread concentricity at 0.0015 inches runout, well within acceptable tolerances for suppressor mounting without baffle strikes.
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 2026-05-29.
$4083.99