Gold dot 124+p, DPX, Black Hills 124+p all feed well and produce close to 400 Ft/lbs energy from mine. It likes Golden Saber +p too. Use one of those slip on rubber grips!

Mine eats UMC hardball like skittles at the range, and groups Federal Hydrashock Low Recoil in the same spot... No issues at all.

Jeff

I haven't tried lots of different types, but with what I have tried, I have never had a malfuction of any kind -- never.
Currently, Winchester Ranger is in the gun. Before that, Hydra-Shok. Practice ammo is somebody's generic flat point, I forget whose, maybe PMC. No issues.

We have 2 P-11's, one is brand new, never been fired but loaded with 124gr Hydra-shoks. Of course I did the reccomended F and B, but haven't taken it to the range yet. The other is older (ser#167xx) and has had a pretty steady diet of 115gr Monarch (Barnaul) FMJ with not so much as a hiccup. But, I have it loaded with Winchester PD 147gr JHP. After reading several posts and ballistic tests I think I'm going to change to the Hydra-shoks though. Haven't shot much other stuff in it, I seem to stick to the cheapest for practice.

I am just breaking in my P-11 and shooting WWB FMJ practice with no prblems. I tried a few Corbon 125+P rounds that i use in my XD and it did not like those as all. I saw cartridges stuck just below the feed ramp pointing down range and the slide stuck open, stove-pipes, failure to chamber the next round from the magazine, and some I have not seen in other guns before. I know it is new and requires some break it. I did the fluff-n-buff on the feedramp and barrel and cleaned and lubed it well befreo my first use, to hope to speed the break-in. It may take some time, but I also did some research and made some observations that the Corbon rounds are quite a bit shorter than round ball practice ammo and shorter than other hollow-point self defense rounds. So, once I get a lot more practice with the FMJ ammo, I will try some other JHP rounds for self defense us in my P-11. Note, my PF-9 is broke in a bit more but still needs more rouinds for carry use, and it has some of the same issues with the Corban JHP rounds