Everything you need to know from 300 to 1500 yards. If you change loads, simply print a different chart. Changing elevation, temps, ect... by a bunch??? print up a new chart.
Wind chart on top out to 1500 in 5 mph incruments (full value) in MOA.
dial ups out to 1500 in 25 yard incruments in the middle.
Hold over chart on the bottom.
Simple, fast, and effective!!
CUSTOM KNOBS ARE A WASTE OF MONEY and very limited. (imo).
Tod