DLJ6: Those .14 AH rifles are fun. I had one off a Ruger 77/22. Really quiet and very effective.
Luke Baxter: The bullets I have for the rounds above are just brass spun down. I haven't actually weighed them yet. As for the .14 stuff, Marty at Twisted Barrel makes copper solids in .14 cal from 9gn, 12gn, 15gn, and 18gn I think. Carl at Extreme Accuracy makes swaged lead core bullets in 10.5gn, 12gn, 15gn, and 18gn, IIRC. The lighter one's seemed to shoot the best in the guns I had. The .14 Flea would be a fun little squirrel rifle.
Ron Reed of Reeds Ammo was putting together a T/C barrel group buy on a .10 cal off the Hornet case, but something never got put together somewhere along the line, so it didn't happen. Hopefully it will at some point.