I like a Weaver-style base with quick-release rings, or at least a set of rings that I can get off with a coin. That way I can use the irons with little or no trouble by sighting through the center groove in the base after I pull the scope off. You never know when that will come in handy. Just be sure to sight in using your irons before you mount your scope. When at the range, I regularly set the 100-yard gong to singing offhand with the scope, then pull the scope off and try a second verse with the irons. My eyes aren't quite what they used to be but I'm still confident I can bring home the bacon if my scope fails.