I have been shooting factory 9 because it was relatively cheap. I found a box of reloads that I put together 9 years ago. It is a 115gr fmj over 4.5 grains of 231.
I was firing these in my RIA this morning and some were not ejecting, but were stuck in the chamber. They were crimped with a Lyman taper crimp die and stored in the house. I have not tried them in any other pistols.