I am not a member of the following forum, I found it on a search, and found it amusing , I thought a few others would to. If anyone has not had enough reasons, pro or con, of whether the 30-30 is a valid round for anything, including combat, then this is a good thread to help your side. Before you start it is 8 pages and last count, 179 posts.
http://www.thehighroad.org/showthread.php?t=421537