The Fierce Firearms Carbon Rival XP in .300 Win Mag is the long-action, long-barrel version of the Rival XP platform. The 24-inch barrel runs a 1:10" twist rate and terminates in a radial muzzle brake. Stock is the Fierce Tech C3 carbon fiber with an adjustable cheek piece. The dual-lug stainless steel action has 70-degree bolt throw and precision-machined raceways. Capacity is 3+1. The Bix'n Andy trigger adjusts from 1 to 3 lbs. 
 

Key Specifications 

• Model: Carbon Rival XP 
• Caliber: .300 Win Mag 
• Action: Bolt Action 
• Capacity: 3+1 rounds 
• Barrel Length: 24 inches 
• Trigger Type: Adjustable Bix'n Andy (1 lb - 3 lb pull weight) 
• Safety: 2 Position Manual Safety Lever 
• Stock Description: Fierce Tech C3 with Adjustable Cheek Piece 
• Barrel Twist Rate: 1:10" 
• Muzzle Device: Radial Muzzle Brake 
• Receiver Material: Steel 
• Finish: Phantom Camo 
   

Features 

 
The C3 carbon fiber barrel uses a hand-lapped liner inside the wrap, and Fierce advertises half-MOA or better accuracy. The 24-inch barrel gets more velocity out of .300 Win Mag than shorter configurations, which matters at the extended ranges this cartridge is typically used for. The adjustable cheek piece handles different optic heights without adding riser hardware. The radial muzzle brake is a practical inclusion on a .300 Win Mag rifle. The cartridge has real recoil, and the brake reduces it noticeably. 
 

Who It's For 

 
Long-range hunters and elk-country shooters who need .300 Win Mag performance in a carbon-fiber package. This is a purpose-built tool for a specific use case, priced at the upper end of the bolt-gun market.

Owners of the Carbon Rival XP in .300 Win Mag generally focus on the same factors as the rest of the Rival XP line, with recoil management getting more attention given the cartridge.

The carbon fiber construction and light weight are cited as primary draws. .300 Win Mag rifles can get heavy quickly, and the Rival XP keeps the weight down without giving up durability. Users who carry rifles on backcountry or mountain hunts appreciate this concretely.

Accuracy feedback is positive. The half-MOA claim is generally considered achievable with appropriate ammunition, though as with other rifles in this line, getting there requires some load development and range time.

Recoil management with the radial muzzle brake is noted as better than expected for the caliber. Some users still find extended shooting sessions stout, but the brake does measurable work.

Price is the consistent friction point. Fierce rifles are priced above mid-market alternatives, and buyers either accept that based on the build quality or find it hard to justify. Customer service experiences are mixed, similar to other models in the Fierce lineup.

Overall sentiment among owners is positive, with the usual caveats around cost and the setup time required to dial in accuracy.