ORIGINAL: stalkingbear
One important thing to remember is to mount the scope as low as possible without having contact between scope objective bell,and barrel.
I agree with Stalkingbear. I like my scopes mounted as low as possible.
On a recent spring bear hunt, I discovered that one of the windage screws came out on my rear base (traditional Leupold-style bases and rings). I found the screw in the gun case, put it back in, and resighted the rifle while I was on the hunt. It ticked me off something awful, so I decided to dump the mounts altogether. I don't want to worry about that kind of stuff while I'm in the field.
I have switched two of my rifles from traditional Leupold-style bases and rings to Talley Lightweight mounts. I like the one-piece design of the Talley's. They are a very strong, lightweight set-up. A friend has a set of Leupold Dual Dovetail mounts on his .338 Ultra Mag. I like them as well - strong and simple.
On my .375 H&H I have a set of Warne Quick-Release bases and rings. I can remove the scope for close iron sight shots (for bear defense when you're packing out meat, for example) and when I put the scope back on, it goes back to zero. This is a nice feature, and in my opinion a much better solution than cheaper over-under mounts.