My glock 26 gen 4 9mm is brand new. I just chambered it the first time today. First time it failed to feed. I figured it was just because it was a hollowpoint round, so I tried again, and it failed again. I cycled thru a whole magazine of Hornady HP and they all failed to feed. Next up was a box of jacketed ammo. Every other round failed to feed. After the jam, I only needed to pull back slightly and release and the round fed the rest of the way. Don't see any obvious signs of wear on the feed ramp; looks brand new as it should. Any ideas what's going on?