I ran five of these loads through my XD9 at that range last week. The first shot I actually flinched at the muzzle flash--it was WAY more than I was used to shooting regular range round (Winchester FMJs). At first I thought I had simply had a brain fart. :shock: But I kept firing and, sure enough, the Hydra-Shoks flashed like nothing I had seen out of a 9mm before. I thought Personal Defense loads actually were supposed to have LESS flash(?) Is this normal, something any of you have observed, or is something else going on? BTW--I fired 15 WinFMJs after that, and it was back to normal. Hmmmmm.