Alright so I took my mark 4 off of my .308 and put it on my 22 today just for fun because my .308 is needing a new trigger assembly right now... I was having trouble with the adjustments I was trying to get it zeroed at 25 and then I would move to fifty and so on I just dont understand how the adjustments change from 25-100 and so on is their a mathmatical way to figure this out I have the M1 knobs wich would be .25 MOA correct? say If I wanted to dial out from 100 to 400 I knew my drop how would I know how much each click is doing out at 400 .25x4??? how about at distances under a 100??? thanks for helping guys!!! any info would be appreciated sorry for the long post!!!