Shilen 17 Caliber Centerfire Barrel Blank 1-10 Twist Contour 5 Stainless

Expertly-crafted, steel barrel blanks are button rifled for extremely-close, inside uniformity from breech to muzzle. Adherence to groove- and uniformity-tolerances of .0005" and .0003" respectively, guarantees these barrel's accuracy. Stress-relieved for ultimate strength and durability. Rimfire blanks are .920" diameter; centerfire are 1.250". Available in Chrome Moly and Stainless Steel. Mfg: Shilen SPECS: 4140 chrome moly (CM) or 416 stainless steel (SS). Centerfire: 1.250" (3.2cm) O.D. Unturned - Approximately 9 lb. (4 kg); Contour 2 - 2A 3/4 lb. (1.2 kg); Contour 4 - 3A 3/4 lb. (1.7 kg); Contour 5 - 4A 1/4 lb. (1.9 kg) Rimfire: .920" (23mm) O.D. 3A 1/2 lb. (1.6 kg)