Description
There are lightweight hunting rifles, and then there are rifles built to shoot like a full weight precision gun without punishing you on the pack in. The Proof Research Tundra in .300 PRC lands firmly in the second camp. Proof took the accuracy focused DNA of their tactical rifles and folded it into a mountain hunting platform that starts around 7 pounds, thanks to a carbon fiber stock and their patented carbon fiber wrapped, match grade Sendero contour barrel. That barrel is the heart of the whole thing. It sheds heat faster than steel, holds its point of impact as strings get longer, and cuts serious weight off the front end.
What Makes the Tundra .300 PRC Worth It
The action is a right handed steel Defiance Ruckus, machined to extremely tight tolerances and bedded for accuracy, and it runs a BDL style magazine so there is no detachable box hanging below the stock to snag on brush or a pack strap. A TriggerTech trigger handles fire control with the crisp, consistent break that brand is known for, and the modified ball bolt knob is easy to run with gloves on. Up top you get a single piece pinned rail ready for your optic, and the 22 inch barrel comes threaded 5/8×24 with a thread protector, so adding a brake or suppressor is about as simple as it gets. Every Tundra is test fired before it leaves Montana and backed by Proof's sub 1/2 MOA guarantee.
Built for the Country .300 PRC Was Made For
The .300 PRC chambering is a natural fit here. It was designed from the ground up for long, heavy, high BC .30 caliber bullets, which means it carries energy and bucks wind at distances where older magnums start running out of steam. Pair that with the Tundra's adjustable Monte Carlo cheek piece, which lets you set a proper cheek weld behind a big scope, and you have a rifle that is genuinely comfortable to shoot well at distance. The Green Jungle camo finish rounds it out with a look that blends into timber and dark country. This is a buy once rifle for elk, mule deer, and anything else that lives a long way from the truck.
Key Specifications
- Manufacturer: Proof Research
- Manufacturer Part Number: 140123
- UPC: 843068140123
- Caliber: .300 PRC
- Action: Defiance Ruckus, Right Hand Bolt Action
- Barrel: 22" Carbon Fiber Wrapped, Match Grade, Sendero Contour
- Muzzle Thread: 5/8×24 with Thread Protector
- Trigger: TriggerTech
- Magazine Type: BDL Style (Internal Box)
- Stock: Proof Carbon Fiber Tundra with Adjustable Monte Carlo Cheek Piece
- Stock Finish: Green Jungle Camo
- Length of Pull: 13 5/8"
- Optics Base: Single Piece Pinned Rail
- Bolt Knob: Modified Ball
- Accuracy Guarantee: Sub 1/2 MOA
- Starting Weight: Approx. 7 lbs
What’s Included
- Proof Research Tundra bolt action rifle
- 5/8×24 thread protector (installed)
Frequently Asked Questions
Does the Proof Research Tundra really come with an accuracy guarantee?
It does. Every Tundra is test fired at the factory before it ships, and Proof backs it with a sub 1/2 MOA accuracy guarantee. With quality match ammo and a solid optic, this rifle is capable of half minute groups right out of the box.
Can I run a suppressor or muzzle brake on this Tundra?
Yes. The 22 inch barrel comes threaded in the common 5/8×24 pattern and ships with a thread protector installed, so it accepts most .30 caliber brakes and suppressors without any gunsmith work. A brake or can is a popular addition on .300 PRC to tame recoil at the bench.
Does the Tundra use a detachable magazine?
No, it uses a BDL style internal box magazine with a hinged floorplate. That keeps the bottom of the rifle slick and snag free for carrying in rough country, which is exactly what this platform was built for. You load from the top and drop the floorplate to unload quickly.
Is a 22 inch barrel long enough for .300 PRC?
You give up some velocity compared to a 24 or 26 inch tube, but the tradeoff is a noticeably handier, lighter rifle for packing into steep country. The .300 PRC still pushes heavy, high BC bullets fast enough from 22 inches to handle elk and big game well past typical hunting distances. It is also a great length if you plan to add a suppressor.





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