I think that JDJ does one on the 444 case and I also think that Reeder does one on the 405WIN case. For a lower pressure round there might be a couple people doing it using 375 WIN ir 30-30. The 8mm area seems to be a logical step from a .308 size than has long been overed looked. The JDJ round gives you almost the same abilities for most game as the 375 does, except for the really big ones, with less recoil. I'm not sure what the Reeder round does but it should be close to JDJ and some think slightly better. Why not go down to the wildcats section adn see what the players think.