BB0414 GREEN MTN BBRL 1 5/16" X 54 C X 36"

Machined from finest quality American round bar stock, pre-straightened before drilling to assure minimum run out. After drilling, all barrels are reamed three times then burnished for highest quality bore finish. Rifled with 8 lands and 8 grooves with a nominal groove depth of .012. After rifling, the barrels are mounted between centers and milled octagon, assuring a bore true with the flats, then polished to a satin finish. Requires small amount of polishing of the flats before final finishing. High quality flint type forged steel breechplug (listed elsewhere) w 3 ½” tang, threaded for this barrel.

15/16" diameter. .54 caliber, 36" length. .540 lands and .560 grooves. Thread is 5/8" X 18. 1 in 70" twist.