I am having another 300 rum built: Stiller action, Kreiger #5 & McMillian. I am considering a S&B precision hunter with P3 mil-dot. I will use it from 50 to 600 yards. Mostly whitetails & paper. I have little experience with S&B's, but know of their reputation. I want excellent low light performance & precision adjustments. How will this model be & all opinions appreciated. I was considering Nightforce, but am somewhat concerned with low light performance.