Originally Posted by johngalt

Looks like you got your answer. I am surprised that it isn't rated for +P, I thought everything since 1950 or 1960 was.

Not offering any advice or suggestions, you need to make up your own mind as to what is safe and what isn't, but this is the way I think of it:

.38 and .38 +P pressures are so close, if a firearm can't safely shoot +P, it isn't safe to shoot regular .38 either (sort of a reverse way of thinking about it).