Yes,it's true. These guns have a kind of "Kersten" Action. Not like on the modern and the boxlock models, they have these wellknown pins,goeing in, in the lugs. But also more new models have this kind of action. On page 138 in R.L.Wilsons book " The World of Beretta" there is a description of the SO5 (1997) it also have the unusual Kersten style action. And it also have German barrels! They are " Cold-forged Boehler Antinit steel" This kind of steel is extremeley corrosion resistant.
As far as i can understand the description in the book, the reason why this kind of cross bolt type of locking system is chosen for this (clay)gun is simply for strengh.
I'm not sure when the actin changes to the modern type, I'm pretty sure that f.ex the SO10 has the kind of action with the locking pins in the lugs.
