[Smokin' Joe]

It isn’t that fast an expansion, apparently, and I’d bet the muzzle was close. Short barrels will at some point actually have a lower muzzle velocity because the projectile doesn’t have enough run in the barrel to take advantage of the expanding gasses from the burning propellant. Some of the powder charge is wasted as muzzle flash.

[Does so]

It isn’t that fast an expansion, apparently, and I’d bet the muzzle was close. Short barrels will at some point actually have a lower muzzle velocity because the projectile doesn’t have enough run in the barrel to take advantage of the expanding gasses from the burning propellant. Some of the powder charge is wasted as muzzle flash.

I've seen a photo of a guy's back who was shot by a sawed-off shotgun using something less than 0 Buck. This survivor had a huge spread, and the pellets had raised about 22 big welts across his entire back.