This is the best article on the 30-30 I have ever read.
Click on One hundred years and still going strong.

http://www.levergun.com/main_index.htm

30-30 Man

Great article!! I liked the "Why Do Some Cartridges Suceed?" one too. Interesting stuff. Thanks for the link

Very enjoyable read.

Excellent read......he did omit the 7-30 Waters as one of the factory variations to the 38-55 based cartridges. But I am in my own little way adding to the list of wildcat cartridges derived from the original case. First "big gun" I ever shot was a Model 64 Winchester in 30-30......wish I still had that one.