30-30 was one of the cartridges that I thought would never return. It's currently found everywhere I look, but it took the longest to get there. I was finding commercial 45-70 before I found 30-30. 30-30 is one of the most popular calibers in my region, as was .35 rem, which has not returned. .45 Colt is also slow to return here.
I thought about .30 carbine, 32 auto, and .357 but decided 7.62x39 was superior. I also thought about .223 and 22lr, but want to be in the .270-.32 range.