Range report...
My 4.7gr Unique loads chrono'd at an average 986fps. My 5.5gr loads chrono'd at 1068fps.
What was unusual was that I absolutely could not get the 4.7gr loads to choke. Previously, they needed a rock solid grip. Today, with no change, same batch of ammo, I absolutely could not limp wrist it enough to make it choke. I find that odd.
oh, and Winchester 115gr white box chrono'd at an average 1124fps.
my buddy had a brand new Ruger American 9mm. His Ruger would not cycle my 4.7 loads at all. And it really didn't like the 5.5gr loads either, failing to feed one in five. But ran 100% with the Winchester white box.
so, my loads were wimpy. I can bump that up a tad or seat them a little deeper not to exceed the minimal OAL of course.
i got a few pounds of 231. Looks like it takes up less case capacity than Unique and generally better suited for 9mm. I'll aim for 1200fps.
my brand new G43 ran with all varieties of ammo with zero issues.