Unique is the answer for the load you are looking for with HP-38/W231 a close second.

May I ask WHY you want midrange loads? To be honest, any 44Spl load can be put into a 44Mag case and run with safety, but, should you be using loads like that for say, long range deer hunting, it would be a bad idea.

I have a friend that shot a deer with a M629 and 180gr 44Spl factory loads at a moderate distance, 50 yards. The bullet kind of splattered on the deer, didn't come out of the other side and he never retrieved the animal.
So, I guess I said all of that to say/ask this: "Whatcha gonna use them for?"