RE: what size scope?
Mine is a Bushnell Trophy 1.75-4x32 Turkey/Brush Scope with a ‘Circle-X’ Reticle, in a flat black finish. It sits atop a CVA Buckhorn in .50cal;
previously, I had it on a .50 Staghorn for two years.
At the 100 yard the line at the range I sometimes wish for a bit more magnification, but in the woods it is just fine.
When I purchased this scope I almost bought a 2x7 Nikon, and kind of wish I had; that said, I'm satisfied with the Bushnell, and don't plan on replacing it until it breaks.