>>7218729Do a shotgun like a Striker-12, where it holds 12 shells that can be fired in rapid succession, but then you still have to go through the process of loading every chamber one by one like the giant revolver that it is (the mechanism would wind itself as you turned it, so you wouldn't have to deal with that), as well as eject the last spent shell manually before loading the last new shell.
It would give you a lot of firepower very immediately when loaded, but then have a pretty long cooldown for a full reload. Partial reloads can kind of be done but you'd want to make sure to turn the cylinder the right amount so that you don't end up with a bunch of empty chambers before you get a live round.
At any rate, you essentially will not reload this gun while in the middle of combat 9 times out of 10, you will either have to switch to another gun, or run away to cover somewhere to refill the shotgun in safety.