I think any solid 4X should be good to go. Burris and Leupold are easy buys, as they back up their product and have good reputations. Any old scope will do if you are not a bucking rifle bouncer. I've been amazed at some cheap scopes' performance but they haven't shown their integrity down the line. I've injured, rather than killed, and can easily blame a tube that no longer performed as tuned.
I have a 2-7X RF Leupold on my CZ-452 American. I have no complaints with that scope but I know you can probably get some reliable glass cheaper than that.

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