im having a Hart barrell put on a 300 win mag on a rifle i want to use for hunting. mainly deer. i live in the south so 500-600 acre peanut fields are not uncommon. looking for a good scope for low light conditions for this rifle. i have a weatherby 30-06 with a leupold mark 3 on it with mil-dots but late evening it looses a lot of light right when the hunting gets good. been kicking around a S&B or leica looking for opinions on what you guys use.