My load is not likely all too helpful because the powder is difficult to find -AND- the rumor is that it's slated to be shut down and out of production.
With that said, I use 4.3gr Hodgdon Universal behind plated 124gr RN slugs, loaded to 1.147" COAL. I developed the load with Berry's plated bullets but I tend to use more Xtreme plated bullets these days. I have loaded and sent down range
tens of thousands of exactly this load... most often in ATK extruded brass (FC, Speer, Blazer headstamp) but also in PMC, R-P and Winchester brass, amongst others.
This load is not absolute top-end, but at the same time, it simply never, ever,
ever fails to run any/every/all 9mm pistols that ever get a chance to eat it. I can say with complete confidence that this load has happily been sent through over two dozen entirely different pistols. And one carbine.
It's been over 16 months since I sent these over a chrono but the last time I did, it was a 5" barreled Smith & Wesson M&P Pro Series and a 10 shot string returned a 1,061fps average, with a 23.1fps extreme spread and 8.42fps standard deviation.
I have a lot of different loads that I can say are "pet loads" to me, but I simply haven't produced any other single load in the pure volume that I have made of this one.