Weatherby 307 MZY Muzzleloader 45 Cal 26″ Carbon Fiber No Sight

Description

Weatherby built its name on precision rifles, and the Model 307 MZY is the company's first step into muzzleloading after 80 years in the business. This .45 caliber version is built on a modified Model 307 bolt action, so it handles, mounts, and maintains a lot like a modern centerfire rifle rather than a traditional break-action smokepole. You get a 26-inch spiral-fluted barrel, a Graphite Black Cerakote finish on all the metal, and a trim 7.1-pound bare weight that makes it a genuine option for mountain and backcountry hunts. This is the no-sight configuration, and the receiver is drilled and tapped so you can mount the glass or iron sights that fit your season and your setup.

What Makes the 307 MZY Tick

The heart of this rifle is the Arrowhead Gen2 sealed ignition system. Instead of the 209 shotgun primers most inline muzzleloaders rely on, it uses precision-fit primer modules loaded with large rifle primers. That sealed design sends a hot, straight flame path into the charge while locking down the breech, which cuts out blowback into the action, keeps things cleaner, and holds repeatable headspace from shot to shot. Weatherby tunes the whole package around Blackhorn 209 powder, and the system really shines for consistent ignition in cold weather. Each rifle ships with twenty reusable primer modules, and those modules are good for roughly 20 uses apiece before you retire them.

Built Light for the Backcountry

Up front you've got the MZYbrake, a side-ported directional self-timing brake that kicks gas out to the sides to tame muzzle rise and felt recoil, which matters when you're pushing heavy bullets. The stock is a modified Peak 44 Bastion carbon fiber unit with a 3DHEX recoil-reducing buttpad, one of the lightest and most rigid production stocks out there. Trigger duties fall to a TriggerTech unit with a clean, zero-creep break that's externally adjustable down to around 2.5 pounds.

A Muzzleloader That Shoots Like a Rifle

The .45 caliber barrel runs a 1:20 twist and measures 26 inches, with a 13.25-inch length of pull and a 45-inch overall length. For a hunter who wants factory reliability with handling that feels like a real rifle, the 307 MZY lands right in that sweet spot without stepping into full custom territory.