I just now did a web search there was a thread in the 24hourcampfire Alaska forum a couple years ago regarding 35-348 and 35-348AI. The guys posted - there were plenty of bullets. But I believe the number of available bullets has diminished since then.
I read an article stating that the 33 Winchester could be loaded to similar power as the 348, but that seems unlikely to me.

I prefer classic.
Semper Fi
I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally