Chances are the closest you've come to hunting with a pooch is swearing at that giggle-happy mutt who shames your every miss in Duck Hunt. In the real world, dogs are sent out to flush game and track down new things to shoot at, often way out of sight. Garmin's Astro receiver, combined with the DC 30 collar tracker (pictured above), made it easy to keep the all seeing eye on your very own mutt even when miles away, and now the DC 40 makes it even easier. The DC 40 sports a redesign that should make it a more reliable companion, in
