A revolver has more than just a muzzle blast. The gap between the cylinder and the barrel has a high pressure blast of its own. This blast has more energy then a normal weapon muzzle blast and is capable of causing serious harm when exposed to. More so with a powerful cartridge like the .44 Magnum. Even a .38 special has the potential to be harmful with the cylinder gap blast.

#TheMoreYouKnow 

[@Doc Doctor]