I am a big fan of .30 cal rifles. .308 win, .30-06 sprg, and .300 win mag. I use these for everything from varmints to whitetail. Instead of buying another gun in one of those calibers, what are your thoughts on other rounds that are out there in .30 cal? I do all of my own re-loading, so availability of brass is a concern for me. What .30 cal are you guys shooting, and why?