Wildcats to me are low priority, I focus more on the factory rounds. If I run into a wildcat I do snatch it up. I have a .300 Gibbs and .338 Gibbs I technically could have added into the 30-06 family but didnt.*
I figured since you had the 6.5 and .338-06 which really are still only semi-commercial wildcats. I don't know anyone outside of A-Square that produces 6.5 loaded ammunition, and Nosler is the only other manufacturer of .338-06 besides A-Square anymore. Since were on the topic of Gibbs, don't forget about the Ackley versions, Hawk and PDK cartridges as well.