These SSK Hunter Line custom barrels are made from Green Mountain blanks and will be part of our regular inventory. PLATFORM: SSK / Encore. CALIBER: 6.5 GRENDEL. RATE OF TWIST: 1:8. FOREND SCREW SIZE/SPACING: 8-40 / 5 Centers, therefore any Encore rifle forend will work well. SCOPE BASE: Silver 6 Hole Base Included. This item is in the category “Sporting Goods\Hunting\Gun Parts\Rifle Parts”. The seller is “hausofarms-tc4me” and is located in this country: US. This item can be shipped to United States.