I took my new R9s to the range yesterday. I fired the following types of ammunition:
Winchester White Box 124gr. FMJ
Speer Lawman 124gr. TMJ
Range Safe Ammo (made in Czech Republic) 115gr. FMJ
Federal Hydra-Shok 147gr.
All ammo functioned flawlessly. Unfortunately, I went to an outdoor range with very deep snow and the target wouldn't stay up. So I didn't shoot for accuracy. I just wanted to put a few rounds through the pistol to start the break in process.