I think the 35 degree sholder angle is the original version by L. Kilbourn. That's the version I plan on doing, depending on the information I get back from the manufacturers of the dies and reamers that I emailed and I also have a bunch of info. on the K-Hornet along with all my old reloading books from wayback when I started thinking about doing this project that I need to dig out. I spent hours researching the K-Hornet on the net this last week. I came across alot of stuff I wish I had not found and so on, as you know how info. on the web gets. Like one company's dies have different shoulder angles than the others, same with the reamers, or back in the early to mid 2000's some one had a special reamer cut with different lenght dimensions that was in a reamer rental program and the reloading dies not matching the chamber and so on. That's why I sent out the emails to be 100% sure that I get what i'm looking for.