I believe the bear is 3'x5', maybe 4'x5' (I think it's the same size as the buffalo target I shot before). I think the guy who was my spotter said the gong was 3 feet across, but I might be mistaken. Here's the link to the range I went to.
http://www.inas.us/svrpc.html
I hear ya about the prarie dogging, I appreciate that but I'm not into killing unless my life is in danger and last time I checked, I haven't seen any armed ground squirrels. . . yet!