JKO,
Yes I have been kicking around a 300 Allen Mag based on the 408 CT case. I actually have a couple ideas drawn up, just have to make a final decision and decide which one I want to go with.
This decision will be greatly decided by some new bullets that will be built by Wildcat Bullets. One is an extremely heavy bullet, when I say extremely heavy, I mean something that makes the 240 gr SMK look like a medium weight bullet /ubbthreads/images/graemlins/grin.gif!!
Depending on if these bullets are a go, I will then make my decision as to what design to go with and order the reamer.
My opinion is that if you are going to use the full 140 gr capacity of a 338 AM based wildcat in 30 cal, the current bullet weights simply are not heavy enough to make it a practical idea. With the current bullet weights I would rather knock off 20 gr capacity which would basically split the difference between a 30-378 and a 300 AM based on the 338 AM design.
Kirby Allen(50)