I tried Searching over at the P38 Forum; only got hits for the PP...
I like the 7.65mm Luger cartridge; might try rebarreling a P38 to that caliber...
But I'm curious; I see Browning HP's in 7.65mm Luger offered occasionally; was the Walther P38/P1/P4/ style pistol ever offered in 7.65mm Luger???