Sit, enjoy your coffee, and listen for the smack. It gets there eventually. In hunting situations, estimating the range is the biggest thing. I hunt my own land 95% of the time, so I know most distances pretty well, but I still use range finding scopes and bullet drop compensated scopes frequently, because most times here, a 200 yard shot is close, except for deer. If it's not blowing like hell, elevation is all you have to deal with, and learning that just takes studying ballistics tables and trying different loads in the field. After a while you'll get a feel for it and know where your round is going. The other thing that is important to know is that your round is dead on at two points in its trajectory. Lets randomly say 25 yards and 125 yards. By learning and working with that, you'll have two dead on ranges and it makes it easier to figure the in-between and the beyond. And, It is FUN!, (It can also get expensive!!).