Ive got a Super Sniper fixed 10x42 on my Savage 110 on a 20 moa EGW picatinny rail. It still has the factory rifled barrel on it and I was thinking of changing to see thru rings for those occasional close up 75 yd shots on deer. Does anyone have any experience with different models of rings?

My primary concern is how large of a see thru hole do I need to work with those fixed sights.

Here is a pic of the rifle before i scoped it