Stainless for accuracy, heavy for stability, chrome lined for reliability.......
I got the basics, I think. But, now I am wondering about heat and how a barrel holds its accuracy.
Currently, my main varmint rifle has a 20inch heavy stainless barrel. It shoots in the legit .3's when its at a good operating temp---say the first 20 rounds or so. I don't bump fire or blast away, but, when we're lucky, we'll have lots of prairie dogs in front of us and we can keep up a pretty steady pace--3-5 shots a minute or so. After a few minutes, that stainless barrel is heated up pretty good and it will then hold that heat for a while too!! Once she gets hot, the accuracy really starts to drop off.
So, what weight, material and contour gives the best combination for a barrel to keep its accuracy while shooting under such a load??? Does the length of the gas system matter???? Does one run "hotter" or cooler than others????
THanks guys