Well dont do what i did. I have a Stevens 300F and due to the very short sighting distance they really aren't that effective past 25 yards.
I figured the perfect thing would be to get the Tech-sights to increase the sight distance. Since they aren't available here i figured i would come up with something on my own. I ordered a UTG weaver peep sight from amazon.ca for $40 and mounted it on the factory mount. Thinking it was low enough i went to the range to try it out. Shoots way too high so i installed a higher fiber optic front sight still way too high. The front sight needs to be about an inch high if not more for it to work. Money wasted on nothing but hey i guess you get a good tip out of it.
To me it looks like you would have the same problem with the Williams for the Savage. You will need a very high front sight.
If i were to do it again i would call savage and order the peep that goes on the Rascal. Get the receiver drilled and tapped by a gunsmith and be done with it. I have a Rascal as well and the peep is very low on the receiver and works with the original front sight.
As for the Stevens i have, i went back to the factory rear sight. It works great on the range within 25 yrds.