the higher objective the more you will see....it will be easy to find targets quiqly and will gather light better in low light conditions...it will be a fine field rifle also...most of my scopes are like 20 something objective and my leupold is 40...i love the leupold...i got on a running deer in a thicket and was on her so good i dropper her on a run in a thicket..in low light conditions...it was like i was swinning a shotgun...i never looked through a 50..that may be kinda big...but i dont know for sure...