I like Douglas barrels. But I like Hart, Shilen, and most factory barrels too. I think that most factory and after-market barrels have the capability to produce good groups if the they are installed properly, good loading technique is used, and the guy behind the trigger can actually shoot. I believe that NULA uses Douglas barrels and they are known to be pretty accurate rifles.
FWIW, when I buy Douglas barrels directly from Douglas, I always pay a little extra to buy XX air-gaged select barrels.
