how was the over all groupings after shooting more rounds down range?
also, do yourself a favor and ditch the cheap rings and get some decent rings. even weaver makes rings for under $20.
if you put on a decent scope (check out SWFA or cameraland new york for the vortex scopes) you will more than likely get slightly better groupings because you wont be fighting the eye relief and hazing on the scope.
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"Quando Omni Flunkus Moritati" (when all else fails play dead) -Red Green