Shutter speed

Okay, I know this sounds stupid, but what is the muzzle velocity, as such, of a mortar round? No, really.

Because this is a great photo:

I mean, that might be as clearly as you will ever see one of those things in flight.

Okay, okay, so it’s another from the BBC’s Year in pictures.

But, y’know … it’s just a really cool photo, even for a pacifist like me.