I recently ran across this round. Actually a drilling chambered for it. I can't find any reloading data for. Is there a more modern cousin to this? I would purchase the drilling, if I could simply get the rifle tube rechambered to some still in production.

Try e-mailing my friend Marc in France .... marc.charton@worldonline.fr ....
He forms brass, reloads, and is is an authority on everything re: reloading and cartridge re-forming. Tell him Alex sent you.

Well, after a some more research. It appears that RCBS sells forming dies to form this cartridge from 30-30 brass.

That is cheaper than $45+ per 20 that I am seeing.

Still debating whether something like this is worth the trouble.

I don't have the URL at hand, but do a search on reloading data. There are sites with good data on the most incredibly obscure cartridges on the net.