I am leaning heavy towards putting a variable scope on my 2nd M4. The other has an Aimpoint. This M4 will be used to do some hunting as well as pretty much every other type of shooting. I like the Nikons 223's so far. They are designed around the 55grain ammo that I shoot a ton of. I have about a 5 or 600 budget for the optic and mounts. I can't decide whether to get a 1x4 or a 2x8 to put on the M4. I am leaning hard towards the 2x8, but I'm sure a 1x4 would be great as well. Opinions please?