Well I finaly got my Sako Finnlite 300 WSM and now I need to choose a scope. I'm looking at the Leupold B+C 4.5 X 14 40mm or 4.5 X 14 50mm but do I really need to go 50mm ? Do I need anything more than the B+C 3.5 X 10 for 500-550yd shots? What about the adjustable objective? I noticed the Leupold B+C 4.5 X 14 comes with or without the adjustable objective, should I go adjustable objective? Thanks in advance for any thoughts or help guys!