Just got back from my LGS.
They've had #9 and Longshot every time I've been in there throughout this latest "drought" but I haven't picked any up because they've also had a 1bottle/day limit and in was busy buying 8208, 4198 and Re7 for other projects.
Today I decided to get some but, of course, now that I want it, they're sold out (and they got rid of their daily limit)
I found, and was satisfied with, a nice, paper punching load with Power Pistol and 180's, but this thread has inspired me to explore the performance of the 10mm further.
All this talk of heavyweight bullets has me wanting to experiment with them as well.
I don't live where bears are a problem and I no longer hunt so, I've only ever messed with 175-180gr projectiles but I like that the 10 has data for such a large range of bullet weights; 135gr through 230gr (maybe even more) and a large range of powders.