I like a little more power than 6x for a nice .22. I have a Weaver V16 on my 455 American and it works well. I think the Burris 4.5-14x42 AO is a decent scope, the only issue I have is that the parallax only adjusts down to 50 yards, but that might not be a problem for you. Depends on how you use the rifle.
BTW, on my CZ 457 Varmint MTR I have an Athlon Midas Tac 6-24x50 but that's a target rifle.
