Description
The Thompson/Center ProHunter barrel in 300 Win Mag is what makes the Encore platform so hard to beat: one frame, and a whole safe full of chambering options depending on which barrel you pin in place. This one is the blued, 28-inch version with a threaded muzzle, built to wring the most out of a magnum cartridge that thrives on a long tube. Swapping it in is about as simple as it gets. Pop the hinge pin, drop in the barrel, pin it back, and you're set for a new caliber without buying a whole new rifle.
What the ProHunter 300 Win Mag Barrel Brings to the Field
The 300 Win Mag is a proven long-range hunting round, flat-shooting and hard-hitting on elk, moose, bear, and open-country deer. That full 28 inches of barrel gives the powder room to burn, which means you're getting the velocity the cartridge was designed for instead of leaving speed on the table with a short tube. T/C's barrels are button rifled and brush honed with a match-grade crown, and the fluting cuts a little weight while helping the barrel shed heat between shots.
Setting Up Your ProHunter Barrel
This barrel comes drilled and tapped, so mounting a scope base and glass is a clean, ready-to-go affair. The muzzle is threaded and ships with a thread protector, leaving the door open for a brake or suppressor down the road. There are no iron sights on this one, so plan on running optics. It fits Encore and Encore ProHunter frames, but it will not work on Contender or G2 Contender frames, so make sure you're matching it to the right receiver.
For hunters who already own an Encore or ProHunter frame, adding a magnum barrel like this is one of the smartest ways to expand what your rifle can do. Same familiar trigger, same feel in your hands, just a lot more reach when the shot stretches out.
Key Specifications
- Manufacturer: Thompson/Center
- Model: Encore ProHunter Rifle Barrel
- Manufacturer Part Number: 8221R
- UPC: 810180303392
- Caliber: 300 Win Mag
- Barrel Length: 28 inches
- Finish: Blued
- Contour: Heavy, fluted
- Muzzle: Threaded with thread protector
- Sights: None, drilled and tapped for optics
- Twist Rate: 1 in 10 inches
- Fits: Encore and Encore ProHunter frames
What’s Included
- Thompson/Center ProHunter rifle barrel in 300 Win Mag
- Muzzle thread protector
Frequently Asked Questions
Will this ProHunter 300 Win Mag barrel fit my Contender frame?
No. This barrel is made for the Encore and Encore ProHunter frames only. It will not fit Contender or G2 Contender frames, so double-check which receiver you have before ordering.
Does the barrel come with sights?
It does not ship with iron sights, so you'll want to run a scope. The good news is it comes drilled and tapped from the factory, so mounting a base and optic is quick and painless.
What's the muzzle threading for?
The muzzle is threaded and includes a thread protector, giving you the option to add a muzzle brake or a suppressor later. If you're not running either one, just leave the protector in place and shoot.
How hard is it to swap barrels on the ProHunter?
It's about as easy as firearm work gets. You push out the hinge pin, lift out the old barrel, drop this one in, and reinsert the pin. No gunsmithing required, which is the whole appeal of the Encore system.




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