RE: Leupold Boone and Crocket scope
I prefer a Heavy Duplex for those low light conditions...I kill more this side of 200 than the other side...For longer shots, I'd invest in a range finder...I have my gun setup 2 1/2 high at 100 and its dead on at 250 and 3 inches low at 300...
A rangefinder takes the guess work out...