Depends on what you are shooting and how precise you want to be. The adage I have heard a lot is 1x per 100 yards for general use, 2-3x/100 yards for precision. Regardless of where I am hunting, my scope lives at lowest magnification and only gets turned up as needed when game is in crosshairs. The low magnification is more important to me than the max magnification, becasue it's more important for the vast majority of my hunting shots. A throw lever is habit for me now and I find very helpful for zooming in and out while settling into a shot. 200 yards x 2x/100=4x, but that deer in the scope is awfully small to my old eyes and I cant pick out twigs in the way. I tend to want a little more magnification in the woods than I might on the prairie, in order to pick out a clear shooting lane, and then I'll back off the magnification to keep the critter in the scope to see where it disappears to. Really high magnification is far more useable on a heavy gun. It might be easy to spot your shots through a 30 or 36x scope on a 20-ish lb PRS gun shooting a pipsqueak cartridge...not so much with an 8lb hunting rifle. For me, my lightish guns, and the way I hunt, even with failing 50+ year old eyes a scope with more than 12x magnification isnt helpful, and may even be harmful if I want to see what happens after I pull the trigger. 10x-12x seems about right to me on a unhurried 400-500 yard shot on a deer-sized critter. Probably excessive for most of my hunting, but I also appreciate it at the range on paper and practicing at longer range.