I'd personally send the gun back to Sig as it's definately an issue with the gun if you're having that much trouble tracking down a reliable hollowpoint. I regularly shoot three P238s, two nitrons and one equinox, all made between march and may of 2011. Each gun is 1000+ rounds. I've done extensive testing of HP ammo in these guns. I've tried Winchester PDX1, Remington Golden Sabers, Corbon DPX, Fiocchi Extreme with the Hornady XTP bullets, Federal Hydrashok, and the Powrballs. Every single one of these ammos has fed flawlessly in all three of the P238s I've had access to. That being said, I never tried these expensive ammos until I've considered the guns to be broken in. I've used the really cheap bulk Russian ammo to break them in as the Russian ammo is in steel casings which promotes extractor wear which is from my experience what needs broken in the most. All the failures I've seen with these pistols has been due to the extractor fitting too tight on the rim of the case. My early failures it didn't have a good fit over the rim from being entirely too tight on the rim and failed to extract, with later failures being fail to eject from too tight of fit over the rim and refusing to "let go". I've seen between 4 and 7 failures in the first 400-500 rounds with the steel cased Russian ammo, and true revolver-type reliability after that no matter what I feed it. I typically do a full cleaning of the pistols every 100 shots when breaking in, and always use a rounded steel wire brush (steel barrel brush) on the feed ramp. I also used a steel brush on the extractor's groove that catches the rim during the break in period. After being broken in I've since put the steel brushes up and just use a brass brush inside the barrel and nylon on everything else. I prefer steel brushes to sandpaper and files during break in and for polishing items like the feed ramp and extractor.