You will probably be able to shoot any bullet you like, you will only start to see the lighter bullets fly apart at 3500-3600 fps, could be more could be less depending on how smooth the bore is, which will be close to your max anyway, so I would not worry about it and as far as the heavier ones, you will probably end up close to the same FPS with your shorter barrel since you will lose roughly 200 FPS with the shorter barrel, and gaining roughly 200 FPS with they AI so it is a wash.
Dean
Bookmarks