Thompson Center Arms 8101R 6.5 Creedmoor Encore Prohunter Threaded and Fluted Handgun Barrel - 15in - Stainless Steel - Stainless Steel - The ENCORE line offers a broad range of rifle shotgun and muzzleloader calibers. ENCORE barrels give you the flexibility to pursue nearly any game animal across North America and beyond. Muzzleloader and shotgun configurations expand your options even further. Threaded Muzzle: 5/8 x 24 ; Made in the USA ; Barrel: 15in Fluted; Twist : 1:8in;