Bartlein: .416 Cal Blank, Stainless Steel - 37" - Straight Taper

.416 Cal bbl, .408x.416

5 Groove

"T" style 9.75 to 8.9797 twist

Stainless Steel

1.700"x5.000" str. taper to 1.250"

• Bore Diameter tolerance = +.0005
• Groove Diameter tolerance = +.0005
• Bore and Groove uniformity along entire length of barrel +.0001/-.0000
• Twist uniformity is best in the industry. Twist can be carried out to the 4th decimal point. Example: 11.3642 A Bartlein