Thompson Center Encore ProHunter Katahdin Barrel Features The Thompson Center Encore ProHunter Katahdin Barrel is machined from stainless steel and fluted along its length a process that strips weight from the barrel while leaving the wall thickness needed for rigidity and heat dissipation under repeated hunting-season strings. Chambered in .500 SW it pairs a 20 inch length with a 1 in 20 inch twist rate to properly stabilize the long heavy bullets this big bore magnum cartridge fires. The barrel threads at 11/16x24 to accept muzzle brakes or other devices giving hunters a way to manage recoil from a cartridge built for dangerous game and deep woods hunting. Every barrel ships with no sights installed leaving the receiver drilled and tapped and ready for a scope mount of the shooter s choice. Built exclusively for Encore series frames this barrel will not interchange with Contender or G2 Contender receivers so shooters should confirm their platform before ordering. Thompson Center test fires every ProHunter barrel at 100 yards at the factory verifying point of impact and accuracy before it ever reaches a customer. The stainless steel construction resists corrosion from weather blood and field handling far better than a blued finish would over a hunting season. For an Encore owner looking to add a genuine big bore capability without buying a second complete firearm this drop-in barrel is a straightforward way to expand what one frame can do. Thompson Center Encore ProHunter Katahdin Barrel Specifications Manufacturer: Thompson Center Model: Encore ProHunter Katahdin Barrel Compatible Hosts: Encore ProHunter Katahdin Caliber: .500 SW Barrel Length: 20 Barrel Description: Fluted Threaded Material: Stainless Steel Twist Rate: 1:20 Muzzle Thread: 11/16x24 Sights: None Weight: 3.7 lbs Available At: GrabAGun