Well it has come time I get serious about having a new rifle built to increase my effective range. This rifle will be used for Deer and Caribou in the open. I am not leaning towards a Mag rifle and I have set a limit for now at 600 yards. I can shoot at a range on private land out to 800 yards currently. I am comfortable to 400 and have time to get comfortable out to 600 before the season comes around again. Next year my goal would be to 800 and so on. Right now I am leaning towards a 25-06AI shooting 120 grain bullets as a minimum and probably something heavier from one of the custom bullet Mfg's. I would like a few thoughts on what the above should be capable of in well constructed rifle with quality optics and so on.