I have an Evans Paradox which was built just after the turn of the century. It is a 2.5 inch gun which shoots Ross Seyfried's load into a LxR/LxR 2.5 inch group with almost boring regularity. It firest the new H&H loads into a 4 inch overlapping group. A few years ago, in Namibia, I rolled warthogs and shot sand grouse with it at the same water hole (It throws beautiful modified patterns).
Should you decide to buy one, inspect it very closely. Many have seen the attention of gun butchers who one way or another have destroyed the rifling or regulation. I saw one in the Fort Worth Cabelas not long ago which had clearly had the rifling bored out of it.
A drilling with a quick dismountable scope is hard to beat for the work you describe. The same investment will get you an almost new condition drilling in a useful caliber. Most will have claw bases, and someone like JJ Perodeau at Champlin Arms can make a set of rings to fit. The good ones are quite light, and even with a cheek piece, tend to be natural pointing guns.
