So I'm new here and love what I've read so far. So here's something that's been rolling around my head... I have a 30.06 and primarily shoot 150 grain rounds I picked up some 165 grain rounds that were on clearance the other day and shot them. I had to move up 12 clicks to be on in elevation at 100 yards. The question is two parts: 1.) should I be on at 200,300 if I am at the same elevation at 100 yards with the 165's as I am with the 150's assuming they drop at the same rate? 2.) If I were to buy 180's would there be any way to know how to adjust w/o shooting ie. has someone done this who can tell me approx. how much lower a 180 grain bullet will strike at 200 yards then a 150 grain? Thanks for the comments. Don't rip me too bad, I'm new.