Thanks for the reply, Mike. I probably should stick with the 7 mag as that will provide more range than my coyote rifle. It's good to know about their noses. I'll make sure it is not at my back.
Oh, and your book is a very good read! I've learned a lot about the habits of antelope that I did not know before. You have shot some tremendous bucks over the years. I doubt we have as many B&C bucks running around Nebraska as you have harvested over the years!