I like the 260AI because you can make the brass out of several different cases and once you have made it the stuff it lasts a long time. I have only fire formed 98 cases in the last 3 or 4 years.
Mine has a 30" barrel so that helps with velocity, but I was pleasantly supprised when I was getting the big 140gr bullets comfortably up to 3000fps. Real flat shooter that practicaly ignores the wind. I was pondering several different 6.5s when I was doing my build, now that I know fire forming is no big deal I wouldn't build any other 6.5. In my research it was the best and I still agree with that. It is basically neck and neck with the 6.5x284 but it is in a short action and it is easier on barrels.
...and the 40 degree shoulder with a ballistic tiped Amax seated long looks pretty mean. Good luck with your build, you will be happy with whatever your choice is.
By the way. If you think your rifle turned out too heavy, dont shave anything off. Go join the gym instead, you wont regret it. Serious...
