I know you said only to 100 yards but I think if you are using a rifle, even a 22, you'll eventually want to know the distance of something a bit further.
Nikon has a $30 instant rebate going on right now for their PROSTAFF 3 and 5 Rangefinder's. I think the promo only lasts a few more days , so check out an Authorized Nikon dealer to take advantage of this offer if it's something you are interested in.
Hope this helps?
Nikon Pro Staff