John Wooters used to run hot .30/30s out of a TCR single-shot at kinda-sorta .300 Savage levels. Best as I recall, he didn't publish his loads for fear someone would try them in a weaker rifle.
I figure the .30 WCF is fine as it is and plenty of rifle for woods use, just not something with much loony potential. A falling block single shot chambered for it would be nice for targets and woods walking, but the few Ruger and Browning turned out aren't likely to show up in my LGS anytime soon, unfortunately.
