If you really want smokin' loads at safe pressures, try AAC#7. Hodgdon HS-7 will also beat out the faster powders.
I've had good luck with HS-6 (similar to PP) in moderate loads in 10MM, but it won't smoke 'em out like AAC#7.
If you want a truly great load in 10MM, get some Winchester 155 silvertips and work up to a max charge of AAC#7. (Max by pressure ring expansion method)
Being careful, you should still get over 1450fps with this load. Depending on the gun, you might do even better. My Glock 20 with BarSto barrel loves this combo.
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