It seems to be pretty good. I shoot of my bipod and I group the first 3 then rapid fire 7 more. I average around .600"on the bipod, but when I sand bag it, I have had several around .300. Im not really concerned so much with how tight of a group I can shoot, its more about the 7 round rapid fire after the first three hitting within 3-4" groups. I am however interested in long range, but I havent had a chance to go as long as I would like. 800 yards plus. the most noticeable difference in the barrel is the feel of the shot, which is a really smooth and even pressure. The velocities I am achieving with this 21" barrel is what my reloading manual says a 26" barrel should have. The velocity is also very consistent with max variant of 43 fps on my 180gn noslers and an avererage of 28 fps difference.