Description
Weatherby calls the Apex the top of the food chain, and in the new 25 WBY RPM chambering that claim carries real weight. This cartridge is the latest in the Rebated Precision Magnum family, designed around a rebated rim, minimal body taper, and a 35 degree shoulder so it delivers magnum-level performance from the lighter six-lug Mark V action. Factory loads push a 133 grain Berger around 3,000 feet per second, and the fast 1:7.5 twist barrel stabilizes everything from light varmint bullets to the heavy, high-BC stuff that makes long pokes on game realistic. For hunters who love a quarter bore but want modern bullet options, this is the setup to beat.
Built Like a Mark V Apex Should Be
The 24 inch #3 contour barrel is fluted to shed weight, finished in two-tone Coyote Tan and Graphite Black Cerakote, and threaded 5/8-24 with Weatherby's Accubrake ST on the muzzle, which knocks felt recoil down considerably. The spiral fluted bolt runs on a short 54 degree lift for quick cycling and plenty of scope clearance, and the steel receiver comes drilled and tapped so mounting glass is straightforward. The TriggerTech trigger breaks clean with zero creep and adjusts externally, so you can dial it to your liking without pulling the action from the stock.
Why the Apex 25 WBY RPM Earns Its Spot in the Truck
Peak 44's Bastion stock is one of the lightest vertical grip carbon fiber stocks in production at roughly 23 ounces, with an ambidextrous palm swell, a deep thumb groove, and a 3D Hex recoil pad that takes the sting out of a long range session. Dual front swivel studs let you run a sling and a bipod at the same time. All told the rifle comes in around 6.5 pounds with a 4+1 capacity, and it's backed by Weatherby's sub-MOA guarantee with factory or premium ammo. Light enough for the mountain, accurate enough for the far side of the canyon, this one covers a lot of ground.
Key Specifications
- Manufacturer Part Number: MAX01N25RWR6B
- UPC: 747115463336
- Action: Mark V Bolt Action (6-Lug)
- Caliber: 25 WBY RPM
- Capacity: 4+1
- Barrel Length: 24" (26" with muzzle brake)
- Barrel Contour: #3, Fluted
- Twist Rate: 1:7.5
- Muzzle Thread: 5/8-24, Accubrake ST Included
- Trigger: TriggerTech, Externally Adjustable
- Stock: Peak 44 Bastion Carbon Fiber with Tan/Brown Sponge Accents
- Recoil Pad: 3D Hex
- Finish: Coyote Tan / Graphite Black Cerakote
- Overall Length: 46"
- Length of Pull: 13.25"
- Weight: 6.5 lbs
What’s Included
- Weatherby Mark V Apex bolt action rifle
- Accubrake ST muzzle brake (factory installed)
- Owner's manual
Frequently Asked Questions
What is the 25 WBY RPM cartridge and how does it compare to the 25-06 or 257 Weatherby Mag?
The 25 WBY RPM is Weatherby's newest quarter bore, built on the Rebated Precision Magnum case with a rebated rim and 35 degree shoulder. It pushes a 133 grain Berger around 3,000 fps and is designed specifically for heavy, high-BC bullets that older .25 caliber cartridges were never twisted fast enough to stabilize. Compared to the 25-06 or 257 Wby Mag, it retains energy better downrange with those heavier projectiles while running in a lighter, more compact action.
Does the Mark V Apex 25 WBY RPM come with a muzzle brake?
Yes, it ships with Weatherby's Accubrake ST installed on the 5/8-24 threaded muzzle. The brake features 30 symmetrically spaced ports and cuts felt recoil substantially, which makes this an easy rifle to spot your own hits through. The listed 24 inch barrel measures 26 inches overall with the brake attached.
Is the Weatherby Mark V Apex covered by an accuracy guarantee?
It is. Every Mark V is guaranteed to print a 3-shot group of .99 inch or better at 100 yards from a cold barrel using Weatherby factory or premium ammunition, valid for two years from the verified purchase date for the original owner. With the fast 1:7.5 twist and quality bullets, this chambering has no trouble living up to that.
Does the Apex come with scope mounts or sights?
No sights or mounts are included. The steel receiver comes drilled and tapped from the factory, so you can run bases and rings of your choice. The 54 degree bolt lift also gives you extra clearance for larger scope objectives and low mounting setups.




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