I really want to begin coyote (and other varmint) hunting. Presently I am considering a Browning A-Bolt Varmint in 22-250. The gun really feels as if it fits me well, and it is just the right weight -- not too heavy to carry, but heavy enough to stablize any movements. Here's my question -- what scope power? I am pretty much decided on a Leupold. Which is best for varminting? I would think the higher the better, but I could be wrong. IMO, I would be happy with a 3-9. But I have heard a lot about 4-12's. The shooting I would be doing would vary from short ( <100 yds ) all the way to long ( ~400 yds ). Help me out?