I want to move the scope on my rifle so that it fits me a little better. I feel like it is too far forward and when I shoulder my rifle, I don't have a good sight picture until I move my head into an unnatural position. My question is how much will that effect my aim? I will be resighting the rifle, but will it only be off an inch or so and be easy to resight or will it really throw it off? I will probably be moving the scope a 1/2 in to an inch if that.