Well said, that’s a great summary of case measurement and die setting. Micrometers are our friends. Even the digital ones aren’t that spendy these days.
Yup, Unique for it all, 9mm, .38 and .45 both the long and short versions. I have a can of Win Ball 293 I think, don’t use it much, it’s for the full bore .357 loads with a jacketed bullet. I don’t actually shoot many jacketed ones once I get a load set. Lead makes punching holes in paper or knocking down steel plates that much cheaper.
I’m on the last pound of 231... never loaded Unique in .45, tho it’s an easy swap... and I don’t own a 9... doesn’t mean I dont load it...