One of the things you have to deal as stated before is Shake, and how I look at these things if they are 10x then what ever is at 1000yards is going to look like it does at a 100yds with the naked eye and a Deer at A 100yds is a big lump, and another thing you might want to give thought to is the field of view because if there is a chance of dangerous game in the area then you want all the field of view you can get which is why most Dangerous game Hunters useLow power scopes and out to a 1000yds+ I use steiner 7x30s Navigators I do have the Leupold Tacticle Mark 4s 10x50s with the Reticle for longer ranges and I have some 7x50s which are no good for hunting because of the color of the lenses, Anyway I would think about these issues because you may not be alone out there,
My everyday go Binoculars are the Steiners coz they are always in focus and the light transfer also the lightness of them, I've tried them all but I'm just not happy using others for all day viewing,,
John