I ran a couple of hundred rounds through a G19 Gen 5 that had 115 rounds through it. All ammunition has been Speer Lawman 124gr besides a mag of 124gr +P Gold Dot. I've never had this happen before, but today when I slingshot the slide after putting a new mag in, the round was caught slightly, like it didn't finish feeding (I hesitate to call it a Failure to Feed, but I guess that's technically what it was). I was able to recreate the stoppage one more time. I simply pulled back the slide enough for the round to go into the chamber and that was it. I think it's because I didn't slingshot it hard enough - that is, pulling the slide just enough to unlock but that's it, and then perhaps keeping it from returning to battery with full force. Either that, or there's something slightly off about this G19.
Anyone else run into this? I used to mainly use the slide release/slide stop, but in the last thousand rounds or so of shooting, I've been sling shotting the slide.