I have this scope in 3x9x40. It is alot of scope for70 bucks. Every time I have fired at game, I had it on 3 power. You could save some money by buying the 3x9 whcih is a HUNTING SCOPE. Anything that goes past 12 power on the top would be a VARMINT SCOPE.
I don't believ any hunter in the USA needs a 50mm objective.
btw I got this scope from Bushnell. I had bought an old banner used and it broke. Bushnell replaced it witht the current one which is much better. Free of charge. okcmco