Thread: Do you know your barrels??

Ahh Now onto the curly questions.
What makes a "good" barrel?
Im sure we have all seen a horrible barrel that shoots.
Likewise a nice one that wont.
So what makes a good barrel?
Surface finish must only be a part of it,Ie consistent bore dia and or choke. Consistent twist rate or consistent gain for gain twist.Consistent land hight and thickness. Straightness of bore. And of course profile and length.

I know fu$k all about all this but understand if you swage a lead/copper slug threw a tight bit it wont fit snugly in the loose bit.

So what is the most important bit for an accurate barrel?