yep. cold barrel POI is especially important. after a couple of cold barrel shots i usually throw half a dozen or so down range just for the fun of it, depending on ammo availability. i'm pretty well set for almost everything anymore. it used to be a tradition. here in PA the rifle season was always the monday after thanksgiving so friday, saturday, sunday were sight-in days at camp. lot of good memories from my younger days shooting with the old guys and bs'ing.
