I have a copy of an article by Waters on the 7-30 written in 2002. The rifle used for that article was a Savage 99. I have a 14" barreled TC in 7-30 and I like the round in the TC. Killed one deer with the factory load. I use 30-30 brass in it. I have been tempted to build one on a 336A with a bad barrel that I have.
The 7mmSTE is an improved 7mm-08 with a rim. Simpson first tried a standard 7mm-08 reamer and wasn't happy with the velocities so he then tried the improved version. He claimed velocities of 2700 FPS with a 139 grain bullet and 2900 with a 120 grain bullet. I am going to build one soon.