A newby at longer yardages, 200 plus, I am having trouble setting scope. Old eyes having trouble reading, counting, remembering (sometimers I guess) exact clicks. Using same load, could I place some tape around the turret and mark the yardage come-ups on it, or is there a better way? Right now, shooting comp at 200-400-100 yds, no sighters or flags. Thanks. Ron.