Don't bother messing around with the cheap 3/4" .22 scopes put a 1" scope on.Foxes are a soft target so a .22 mag HP will relax them as far as you can hit them within reason.Also avoid 100% aluminum rings that will work themselves loose.Weaver 1" .22 ring 3/8" dovetail mts. are cheap and strong.A combo of aluminum and steel.Never had them shoot loose yet..............Good Luck ..........Harold