Tom, the Cadet problem is strictly in the barrel shank diameter or rather lack of it. The hoop strength just isn't there. The Martini design is one of the strongest in the area of breech thrust support and if the little Cadet had a much larger shank diameter then there would be virtually no limit (except length to 'turn the corner' into the chamber). The large Martini has long since proven itself VERY sturdy with quite a few being chambered for the 30-06 and similar.
Regards, Joe

You can lead a man to logic but you can't make him think. NRA Life since 1976. God bless America!