Got to the range this morning to fire my first batch of brass for my new X-caliber brand 260AI barrel. Usually I go with CBI and have had nothing but excellent barrels but decided to give X-cal a try. I was a little nervous on how it would shoot, it arrived dirty, with greasy finger prints all over it and the rifling near the muzzle looked scuffed. Not a good initial impression. I used a Uni-throater to lengthen the throat a little, I don't know why they use so little freebore in 260AI reamers. I throated it just long enough to get the shank of a 142 SMK out of the donut area. My first 5 shots were cleaning, break-in, and sighting in then I shot a string of 20 rounds and was very impressed with the results. Neck turned 308 Palma brass, 140 Nosler CC jammed .010, ~42.0 A4350. Should be a real shooter once it's fully broke in and a good load worked up. I'll be curious if it out shoots my CBI 260AI that I won my local club 600 yard league with.