Originally Posted by Popgunshooter

Well, my company used to make transmissions and for the shafts used in them they use the same 4140 steel gun barrels are usually made from and drilled the long holes in them using gun drills just like the rifle manufacturers. We brought the bar stock in quenched and tempered to HRC 32-36 and did the drilling and machining to sizes which allowed finish machining. This is because when you do heavy machining to a material in the previously stated hardness range it puts in extreme stresses which when exposed to later high temps can be relieved and cause warping of these products. That's why after rough turning this steel it is usually "stress relieved" at 1000° F before final machining (much less stock removal which doesn't cause stresses). And of course the young, hot shot managers would try to save the cost of this stress relieving operation with disastress results. Believe me I've seen huge heavy duty transmission shafts warp so why wouldn't a gun barrel (much smaller diameter) not warp if it was not stress relieved during production?

I guess all I'm saying is that maybe a lot of barrels for these things were not made correctly. You guys could be right too (barrel nut). I mean to see a fancy rear sight adjusted all the way to the left side and the gun shooting a foot to the right.. I thought it was this guy so let him shoot one out of my little gun after I got it dialed in and he put one in the center with it.