I've got one in 300 win mag. Never seen a factory round - always a handload. Took a few caribou with it back 15 years ago in canada.
Every once in a while I think about selling it. I quickly change my mind when I pull it out of the case. It's been 2 years since I've shot it.
I'd use it a whole lot more with a .243, 22-250, even a .223 barrel on it.
I guess I should go barrel shopping.