I've replaced 3 tascos, 2 redfields, 2 bushnells and even 1 leupold that started shooting to a different poi. I presently use nothing but leupold vari-x-IIIs, swarovski av, and a nikon 1-4 that is no longer made. You really get what you pay for. Many retailers are discounting leupold vari-x-IIIs which are being replaced by the VXIII. I would jump all over a discounted vari-x-III. If your budget prohibits it, I would consider as nice of a fixed power scope as you can afford. I've had very few problems with middle to high end fixed power scopes.