Thinking about getting a decent scope for a 30-06 my dad built 65 years ago. It currently has a 1x-4x Swift with Weaver rings. My 7mm-08 is the go-to for my deer/coyote hunting but I wouldn't mind having something set-up with a little more oomph that can reach out and touch something (300-400+ yds). I can't vouch for the accuracy yet but I expect it'll perform with the right load. It's a heavy bolt action and had a heavy trigger which I recently had lightened to just over 3#. Now for some glass.
Looking at Leupold VX-5HD, Zeiss Conquest VX4 or maybe Duralyt, possibly Kahle, and to be honest, the Maven RS1 has caught my eye too but I'm not wed to anything yet. Most of these are in the 3x-15x range which I think would do the trick. Your experience and thoughts on value, function, and reticles would be appreciated.