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.
well as I said, anything is possible, , but I have never seen it happen in a rifle barrel(personally friends with a few rifle barrel company owners too that have sold hundred of thousands of barrels)
its just the liability side of firearms that I also think its not going to happen, fear of law suits, , so the barrel makers are doing what is needed to prevent things of this nature IMO!
there are many things that can cause issue
from sights on barrel being off center(much more likely)
could be a burn in rifling near end of barre, or bad crown on bore?l (again rather common, )
or say,a flash hider.recoil brake, being off center and causing a slight touch on bullet(seen this happen before, as not all rifle barrels are perfectly round to center of bore, seen many of them be off , so when your screwing things onto end of barrels, it can cause issue's possibly
and again a heavy trigger pull, and shooting to the right with a right handed shooter is Rather common as well!, there PULLING the gun to the right when firing!
when they shoot your gun, maybe a better trigger, and hitting where aiming, has NO real value on what the cause for the AR shooting poorly!, doesn;t rule out shooter that's for sure, as your comparing two different tools
would have been better having YOU shoot HIS gun, than him shooting your gun that has NO issue's?
as I said there are many reason things can be off, but I would place a warped barrel at the low low end of possible issue's!
when trying to fix accuracy problems, there are many steps one can take to try and resolve, and you will NOT be starting at possible cause being a warped barrel, IMO