Re: Just vote..
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ackleyfan</div><div class="ubbcode-body">Which makers have the straightest bores once there in the lathe and dialed in? </div></div>
Based on what experience has taught me:
In practice straightness matters little, if at all from an accuracy potential. Some even go so far to argue that the "straight ones" don't shoot as well as the bananas. I know I like the straight ones from a machining standpoint as they don't "buzz" my hands when I'm polishing the OD after machining, but that's about it.
So long as the smith takes the time to index the barrel when fitting the tennon the rifle will shoot predictably in most circumstances. Even if he doesn't it'll likely still be ok, the issue will surface when stretching your legs out to the longer distances. You may find yourself chasing some windage correction as you go further and further. Clocking the "bend" to a vertical plane helps to mitigate this.
If the bore is consistent in diameter, twist, and has a good surface finish the barrel will almost always perform well. Heat treatment/normalizing the steel makes a difference as it affects the surface finish and bore ID. I can assure anyone that a reputable barrel company pays attention to this as it affects their bottom line and production capability. The larger companies typically try to purchase steel "a pour at a time". -much like buying bullets from the same lot. They'll run some sample pieces through the process to determine exactly how the steel is going to behave during machining/heat treatment. From their they will adjust the size of the finish reamers to compensate for changes post heat treat and let it rip. It's not very practical to be constantly changing tooling to adjust for different material personalities.
The thing I try to focus on when setting up is ensuring the barrel is both concentric and tangent to the spindle axis when chambering. This encourages the reamer to "bite" evenly on all the flutes. If you see one flute cutting more than the others its trying to tell you something. (your setup is flawed)
Hope this helped.
C.