I have an older Bushnell Sportview Rangemaster 3x9x40-T3945 with RM 1,2,and 3 turrents. I checked Bushnells web sight and couldn't fined any manuals or charts for these. Does anyone have any info on this? Also it has the rangefineder retical. There are 3 rows of numbers in yrd's on the power adj. ring, row D,E,and A in white, red, and yellow. Help how to use!