wrong again......show up at a fun range where everyone is shooting black powder with your AK....and see what happens.....get a clue.....
unfortunately, do not own an AK.. I prefer my AR, but I see the point you are trying to make anyhow... however it is not really valid seeing as there is a large difference between a black power rifle and an AK/AR and a shotgun is essentially a shotgun.. your argument would be sound if using a pistol at a rifle range, rifle at a pistol range, pistol at a shotgun range, rifle at a shotgun range, shotgun at a pistol range, shotgun at a rifle range, BP rifle at a pistol range, BP at a shotgun range, I wouldnt mind a BP rifle at my local rifle range (its a rifle) a firearm at a bow range or a bow at a firearm range... etc
but taking a shotgun to a shotgun range.. that is splitting hairs.
perhaps if it was a punt gun at a shotgun range i would see your point...