Thanks for the compliment.
In my personal findings here is what I feel it takes to make an accurate barrel.....
I will start with the part of the smith, I feel that it is extremly important that the chamber follow the bore exactly. It is also important that the smith checks the barrel for it's natural curve, this can be done by cleaning the barrel and looking through it (you can not tell by looking at the outside of the barrel) if there is a noticable curve it should be indexed either up or down (preferable up) so you don't have to continually adjust your windage as your range increases.
A curved barrel versus a perfectly straight barrel both have extreme accuracy potential, what makes a barrel bad is inconsistant bore diameter, meaning tight spots early on in the barrel or oversized spots which allow the gas to escape by the bullet in the barrel.
crooked chambers also lead to inaccurate barrels, irratic twist changes, bad crowns and stress.
Stress causes a barrel to move as the temperature changes. To straighten a curved barrel I feel would imply stress back into the barrel. It can be stress relieved again, but may move back.
Tim told me over the phone that the barrel was straight before it went into the oven. He inspects every barrel that leaves his shop and told me that when it came out of the oven it had curved and was right on the edge of what he will release. Tim North is one of the reasons I use Broughton barrels. He will not lie to you and is a wealth of knowledge. He stands behind his barrels 100% and if I had any problems he would replace the barrel and gave me another barrel for my troubles in a heart beat. I will also add that I have never had to send a barrel back to him due to accuracy problems. You will also not find a more stress fee barrel than a Broughton due to his stress releaving process.
Curves are common with all well known barrel makers. I won't mention any barrel maker names, but I have seen some barrels worse than this released from top barrel makers .
I agree, If I could pick I would pick a perfectly straight barrel, but you must remember even a straight barrel sags when held horizontal. There are ways to mount your scope and levels to help compensate for spin drift and barrels leaving the receiver slightly left or right.
I hope this all makes sense and will also say I am continually in a learning process myself. I will say consistant day to day hits on small targets at 1,000yds. is easier talked about than done
and I very much admire those that are doing it...... as for me I'm still working on it ;)