There are a number of modifications that can be done that give minor performance enhancements.
I don't believe that is true. Neil Winston once said something like - if the barrel wizards have some secret info as to how to make a barrel shoot better then I want them to take a good barrel and make it shoot worse and have it still look factory. Guess how many stepped up to show him?
I've shot some barrels that were absolutely hideous inside, a couple that were very likely dangerous, but it didn't seem to make any difference to the kill factor.
It's a shotgun - - - get over it
