1006 accuracy
In general,I would not feel that something is wrong with your barrel,although I do have a BarSto in my 1006, and yes,there is a difference.I feel that the biggest difference in mine is(was) a trigger job by someone that has experience with those large frame models.To add to that I think a trigger stop might be the biggest accuracy addition of all.There might be some that are against that but I had mine done in the mid 90s and have had no problems and it went back to Smith at least once with that addition.I`m in Virginia so I don`t know any Montana smiths.Good Luck, John