What Mauser888 said. DO NOT shoot your friend's 147 grain reloads in your P.38. I also don't know where the author of the article you read came up with 1400 fps for WW2 9mm but that's an insane velocity unless it was a very light, special purpose bullet. DO NOT abuse your pistol with hot loads. If you must buy cartridges, try White Box Winchester 115 grain. They seem to be safe in Lugers and wartime P.38's.I keep mine around 1050 fps with a 115 gr. round nose bullet. Works great in my shooter Luger too.