Anyone using this in a singleshot?

Can't really think of a good reason to put it in a single, except maybe a break action like the Merkel/Blaser. Highwall & #1's & Hagn's all work very well with a standard Rigby. It's not chambered in any of those as a promo cartridge either.But, if a person is a rimmed cartridge nut, it is there for them to do.