Can anyone suggest dies for a .300 RUM? Are you guys all using Redding with bushings? Are they even available? If so, what bushings should we get? My buddy just bought a 700 .300 RUM. I was planning on building the Tomahawk, but I may stick with a RUM so we can try and find a load that works well with both guns and be done with it. We rarely hunt separately. Is anyone here using a match chamber in .300 UM? Does one even exist? What about the Tomahawk? Is there only one choice in deis, a custom order from Huntington's?