As I recall, the military loading for the .38 Special was a 130gr bullet at a higher velocity than the standard 158gr lead, maybe 950fps-1000fps. Is it possible that with the FMJ that this load would be equal to the standard 9mm FMJ being used on the battle field, or so close to it that anyone shot wouldn't know the difference? I've never heard anyone compare the two. I do know of a vet that used a .38 M&P in Viet Nam effectively with that load, but that is an isolated incident.