I have recently had a Rem 700 rechambered to 7mm/08 AI, not a big improvement to be honest, but I have been playing with Berger 168 gr vld's and can get 2725 fps with no pressure signs ( maybe room for a little more ) I live in New Zealand and shoot mostly Red deer for meat weighing on average around 180 lbs. I was hoping to be able to shoot out to 600 yds. I don't really want a larger calibre as the 7mm/08 AI is nice to shoot and economical for practice. Do you think it has enough punch? Velocity remaining at 600 yds is just approx 1975 fps and 1450 fpe. Any advice would be appreciated.