I have a tack driving CZ 452 American with a Mueller APV 4.5X14 black scope. I have no idea what a Mueller cost in Canada but they are excellent scopes for the money. Purchased rifle and scope for $460 US
http://www.mizzoumuleguns.com/id12.html
The following is a great site for rimfires and scopes:
http://www.rimfirecentral.com/forums/index.php