I was kinda woundering about that 20 but figured that 25 wouldnt make a differance...15-25-35-45-55 insted of 10-20-30-40-50 I wouldnt think 5yrds would be that much of a differance.....Maybe I should resight the crosshairs at 20 and move my speed ring back to the 3 in 300 andsee what happens.All I will have to do is move my horzontalback about6 clicks and should be good at 20...or very close.