Go full-on crazy and try a Leupold 6x36. Light, dependable, long ER, mounts low. Get an extra set of rings and keep your 3-9 as backup (or put it on a backup rifle).
I did buy a new VX-3i 3.5-10 for a .243 mostly varmint rifle, and it looks good, but I haven't shot it yet, so the jury is still out.
