The main reason I have guns setup for different purposes. My SPR complete with a 3.5-10 MK-4 is best at medium to longish range.
My 16" RECCEish gun has a VX-6 1-6 on it. Good enough for close range and good enough for medium range. Though it has the Fire dot reticle that makes it faster than most up close, the reticle is a little too thick for extreme accuracy out far.
My close up house gun is a 16" Colt light weight and wears an Aimpoint Micro red dot on it. Nothing is faster up close but it sucks with small targets past 100 yards.
Given one gun to do all, I'd take the RECCEish gun with the 1-6.
