You will want to try different brands of ammo as well as different bullet weights to see what shoots best out of your rifle.

I have owned a rifle that would only shot a 100 grain round well and then other rifles that would shoot just about anything from it well.

Each rifle will have it's own preference. The fun part comes in trying to figure out which bullet your rifle likes/shoots the best.

As to a scope, I would go with a 4X, 6X, 2X7 vaiable, or a 3x9 variable scope.

Regards,
Matt