I know that Douglas has been making barrels for decades, and have discovered that one particular current semi-custom rifle producer uses them. I'm interested in acquiring a varmint-weight rifle (probably in .221, .222, or .223) with heavy (but not benchrest-heavy) barrel. One option is to specify another barrel-maker, but at an upcharge. So how do Douglas "match grade select stainless-steel" barrels perform in comparison with other barrels out there?