While I'm sworn to secrecy on who this came from...suffice it to say that I got it straight from the "Horse's Mouth" that the recommended ammo is:
-Federal American Eagle 115 gr.
-Winchester White Box 115 gr.
both for target practice,
and
-Gold Dots
-Silver Tips
for defensive ammo.
I have to concur. I was having severe failure to fires, and when I switched to any of the above mentioned ammunition, my problem was over faster than you can say "Rohrbaugh". They all performed flawlessly in my Stealth Elite.
Hope this helps.