Hi folks,
I'm asking this question for a friend of mine who just purchased an R9s this weekend at a show.  
I think the suggested round is Speer Gold Dot 124g, correct.   I think I've read Federal Hydrashock too.  
What else works?  Hornady 124g?  Golden Saber?   Blackhills?
Is 124g preferred over 115?
Speaking of Blackhills, I wonder if the EXP ammo is forbidden.  It's not +P, but it's a little more powerful.  
Thanks in advance,
Bytor Jr...who's now envious of his buddy.