I personally use teh Leupold base and dual dovetailed rings on all my Encore and Contenders. Eye relief is fine. Don't use low rings because it is harder to cock but it can be even with the low rings. I have two with low rings and one with high rings and I like the high rings the best for cocking, etc. but the scope firs lower to barrel to the barrel with low rings. Probably medium rings is the way to go.