I hope you can help me out. I have a 270 that I have zeroed in at 100 yards. I have a Vortex Viper 3x9x40 on it. It came with a sticker so I can mark different ranges on the sticker and compare them to my scope. This is only out to 400 yards. My scope is moa and in 1/4 clicks. I for some reason am having the hhardest time to try and figure out the formula for dividing the target size by the yards times the length or whatever the formula is. I understand that it is not actually an inch at 100 yards also. Can someone help me with the simplest way of getting on target out to 400-500 yards with the supplied information and tell me what information I need to put on my sticker to mount to my scope? I would much appreciate it. Here is attached screenshoots of the bullets I am using.