Jamie Q is on the money with the zesis conquest range, good positive tracking, great in low light, and at a good keen price,
if your looking at foxing at any decent distance, and deer in low light then you will need a quality optic,
and if you cant afford one wait until you can, if you cant see it you cant hit it,
zesis, doctor, leupold, swaro, kahales, all great scopes, i have the leupold 6.5x20x50 LRT/M1 cost over double the zesis conquest and i'd rate them the same
find out what suit your eye, and try, also invest in quality mounts, and you have a setup you can relay