My new P3AT was having an occasional feed issue. Ammo brand didn't matter, and a light "bump" on the slide completed the cycle. The pistol was new so I didn't concern myself with it, but after 400 rounds it still hung occasionally. I decided to correct this. I could clearly see that the bullet was hanging up on the feed ramp so I removed the barrel and polished the ramp using a Dremel and a cone shaped buffing wheel. I used Tripole polishing rouge and got the feed ramp to a mirror finish. As a final touch, I used Flitz on the ramp. 700 rounds later... not a single hang-up. What a sweet little pocket pistol!