I'm new to long range shooting, I have place in Austin that has a 1000 yard targets with my 280 139gr @3050fps and zeroed in at 100 yds that has a Leupold 6.5x20 50mm how many click do I adjust to hit a 1000. I guess a better question is I know one click at a 100 moves it 1/4 of an inch, but what does one at 300, 500,700 and a 1000 do