Hi, I am trying to decide between these two buckmaster scopes. Nikon Buckmasters Rifle Scope 4.5-14x 40mm Side Focus Buckmasters 4-12x50 side focus I am wondering whether to go with more power or the bigger objective. I shoot out to moderately long ranges. Coyotes and antelope out to 500 would probably be my upper limit. I might target shoot further for fun, but not very often. I know that the larger objective would be better for low light, but there is a slight trade off in power. Is there much difference between 12 and 14 power? I haven't messed with anything above 3-9 power before. This will go on my Savage 6.5x284. Thanks for the help.