I had one of the weird Thompson single shot break actions in 219 Donaldson Wasp and aside from forming and reaming the cases it was a pleasure. Accuracy was without fault and operation was fine except for the weird safety if I remember correctly. Had it not been for the safety I would probably still have it. I have never seen another one on the market and would buy one in a heartbeat if I could find one. Seems like it was called the TCR or some such. The Donaldson is an excellant round and 30-30 cases are easy to find.I had RCBS dies for it and a neck reamer. 22-250 performance out of a rimmed round.