I'm probably the only one on this Forum that only uses one ammo, and that's Winchester 115 gr. Silvertips. This was the first ammo I tried, and performed without a flaw, and was recommended.
Several on the Forum said to try the Silvertips and Gold Dots and what worked the best to use it. Well, the Silvertips worked so well that I didn't need to try anything else, so I stocked up.
Winchester is now producing Silvertips again, so they should be available in June. I'm not saying that the Silvertips is the only ammo the R9 will shoot, as John, here on the Forum has tried 7 brands and they all worked well in his Robar coated R9.
This post should not be construed in any manner as this is what I choose to do and the Silvertips work and save me a lot of grief.