Glad that I found this forum...real informative. With the many positive reports that I have read about Mueller scopes and with Optic Zone I decided to give them a shot. A little info on gun and hunting need is in order. First off the scope will be going on a Rem 597 22 mag. laminated heavy barrel....Secondly I will be mainly hunting predators, ( fox, bobcat and such), from real close to maybe 100 yards. The shots may come quickly so a adjustable objective is not desirable..or so it would seem. Mueller offers a 3-9 and 3-10 in there sport dot series that seem appealing so which one is the way to go? Why would 1x and 4 mm more be needed? Plus give me a heads up on which set of Zee rings I would need to order for each.