Shot my PF9 for the first time Sunday. It didn't like Winchester white box 115gr FMJ. It did like American Eagle 147gr FMJ, as well as 147Gold Dots. I shot about 150 rounds and had a few failure to extract, mostly with the WWbox. It was the usual spent case left in chamber and next round pushed forward into feed ramp but not stripped off magazine yet. My chamber is loose and empty cartridgedrops out after I release magazine. At one time after about 4 FTE in a row I checked the scew and it was loose, so I tightened up and it only had the occasional failure after that.

On cartridges that are left in chamber, there is barely a scratch on the rim of the case where the extractor pulls or slips off the rim. Since this is only once about every three magazines could it be limp wristing? Also, what about bending extractor spring a little bit more so it puts more pressure on the claw of the extractor?

I was very pleased with the 147gr. accuracy, about 2" at 12yds off sandbags. The win. white box 115gr not only malfunctioned more, but was scattered all over the paper. Best group I shot was about 5" at 12yds. That is strange because that cartridge is usually
pretty accurate in all my other 9mm's. I hope I get this dialed in because I like the feel of this little pistol. Be a dang good little piece to tote on hikes and in my cycling jersey pocket.

Check out ktog forums for more info, but the big new FTE remedy is a longer screw with 2 extractor springs pushing on your extractor.

I thought it was a pretty good idea really. I bent my spring and I'm not sure if it helped, still had some FTE issues. But everyone that's used 2 springs seemms to have a success story. I'm gonna try it soon bc I really want this gun to work.

My PF9 is flawless with all ammo, but during break in period,only malfunctions I had were WWB. It was perfect with Fed FMJ, Fed 124 Hydra shok, Speer Gold Dot 124 JHP +P and my current carry load, the Fed HST 124. I measured a handfull of all my rounds, and found that WWB was not only the longest bullet profile, but the most inconsistent in OAL.

I don't like failures even at the range, so no more WWB for me. Fed FMJ is just as cheap and more reliable. And although the Gold Dot +P functioned fine, it had too much kick.

I was only having FTE problems. I sent it back and got a new barrel without a bur on the breach face and I shot it yesterday, it cycled federal 115 and American eagle 147 FMJ's without issue.