My friend I hope you are joking.800 yards is a long way out there. And I do practice that, I have a 6.5 X 284 just for that reason. I also have a 50 bmg and THAT is'nt what they are shooting. I can tell you from my experience that if you can hit a 8" circle at 800 yards ( consistently)you are better then 90% of the guys I shoot with ,hell maybe more then that. There are some off the self rifles that will do that but not very many.