I just got a Mil-Dot for the first time and have a hold over question. I have my 7mm STW sighted in for 300 yards so it is 2.5 inches high at 100 yards. Now if I shoot at 100 yards with my first dot I hit the paper 5.5 inches high. So here is my question can I use the first Mildot at 500 yards and the second dot at 600 yards? I am shooting 140 Nosler Accubonds at 3430 FPS.