Description
This is a drop-in 26-inch barrel that chambers your Encore or Endeavor frame in .204 Ruger, one of the flattest-shooting varmint rounds you can load. The .204 was a Hornady and Ruger collaboration built to send light bullets downrange at blistering speed, and factory loads push a 32-grain bullet north of 4,000 fps with recoil that feels closer to a rimfire than a centerfire. If you spend your summers thinning out prairie dogs, ground squirrels, and coyotes, this is a caliber that lets you spot your own hits through the scope and stay on target all day.
What the ProHunter Barrel Brings to the Table
Built from stainless steel, this barrel shrugs off weather and holds up to the kind of high-volume shooting varmint work demands. The fluting isn't just for looks, it trims weight while keeping the barrel stiff, and the muzzle comes threaded so you can run a brake to tame report or thread on a suppressor. It ships with no sights, which is exactly what most folks want since a .204 begs for good glass to reach out past 300 yards. Twist rate is 1:10, which handles the common 32 to 40 grain varmint bullets well.
Swapping Onto Your Encore Frame
The beauty of the Encore system is how fast you can change calibers. Pull the two forend screws, tap out the hinge pin, drop in the new barrel and reverse the process. Most owners report their scope stays zeroed when the barrel goes back on, so you can keep dedicated glass on each barrel and switch between deer season and varmint season in a couple of minutes.
Every ProHunter barrel gets test fired at the factory at 100 yards before it ships, and no gunsmithing is needed to install it. Just note these fit Encore series frames only, not the Contender or G2 Contender.
Key Specifications
- Manufacturer: Thompson Center
- Model: Encore ProHunter
- Manufacturer Part Number: 8140R
- UPC: 810180300902
- Caliber: .204 Ruger
- Barrel Length: 26"
- Barrel Finish: Stainless Steel, Fluted
- Muzzle Threads: 1/2-28
- Twist Rate: 1:10 RH
- Sights: None
- Fitment: Encore series frames only
- Product Type: Interchangeable Rifle Barrel
What’s Included
- Thompson Center Encore ProHunter 26" stainless fluted barrel in .204 Ruger
- Threaded muzzle cap
Frequently Asked Questions
Will this ProHunter barrel fit my Encore frame?
Yes, this barrel is built for the Encore series and drops right onto Encore and Endeavor frames with no gunsmithing. It will not fit Contender or G2 Contender frames, since Encore barrels are larger. Swapping is a matter of removing two forend screws and tapping out the hinge pin.
What is the .204 Ruger good for?
It's a dedicated varmint and predator round, ideal for prairie dogs, ground squirrels, coyotes, and long-range target work. It sends light bullets at very high velocity with a flat trajectory similar to the .22-250 but with noticeably less recoil and report. Most shooters find it easy to spot their own hits through the scope thanks to that soft recoil.
Does the barrel come with sights?
No, this barrel ships with no sights. That's the setup most .204 Ruger shooters prefer, since a fast, flat cartridge like this is best paired with quality optics to take advantage of its reach past 300 yards. The Encore's barrel has an integral base for mounting a scope.
Can I put a suppressor or muzzle brake on it?
Yes, the muzzle comes threaded for that exact purpose. A brake will help tame the already mild report, and a suppressor works well with the .204's small bore. The barrel includes a thread cap to protect the threads when nothing is mounted.





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