44-40 27" Tapered Octagon Pistol Caliber Rifle Barrel Blanks for single shots, lever and pump action rifles, 4140 steel, button rifled, air gauged, stress relieved, milled .850 to .710 across the flats with a 1" round receiver stub, 36 twist, .422 bore/ .429 groove, weighs 2.92 lbs.
Posted by Earl Miller from the state of Missouri on 5th Feb 2015
i purchased this 44-40 barrel with 1-36 twist. It is very important to pay attention to the rate of twist. For a rifle it is a absolute must to have the 1-36 twist. This barrel on a good wind still day and good sight picture will produce a 1.5 " group at 100 yrds with open barrel sights. You may think I am full off shitt. We have done it. Our best ever group measured 5/8" at 100 yrds for a 4 shot group with casted bullets. If you use a bullet that measures .715" long and push it at 1375 to 1400 fps there is no reason anybody with decent eye sight won't do the same. Green Mountain Barrels offer this fantastic quality barrel for half the cost of a custom barrel I had made for my 44-40. And most important of all they got the 1-36 twist. It can't get better than that. Many rifles come with a twist that is waaaaay to fast and you will NEVER shoot what we have with this barrel. Been there and done it!!!