We've had a couple of discussions on this before... about how to catch a gun firing. I've only been able to do it a handful of times and it's been mostly lucky (and shooting 10fps). It happened again today, and here's the shot. It's a Glock 21SF .45 ACP pistol. You can see that the pistol has just fired and the slide is just starting to move rearward. The gases just behind the bullet can be seen in the muzzle flash and if you look closely, you'll actually see the contrail of the bullet passing through the smoke cloud. It's the perfectly straight white line coming from the muzzle. I think that's pretty freaking cool. I just thought I would share the shot.