Getting ready to pick up another Burris 4.5-14X32 Short Mag scope for sons .243 Featherweight. He loves the one I have on my rifle. I have the Short Mag with the adjustable objective and he's leaning towards the same scope without the adjustable objective. This is purely a hunting rifle with the longest shot being maybe 300 yards. Would you recommend the version with or without the adjustable objective? Pros and cons for each?