Sure could. But how many shotguns hold 30 shells? How fast can they be fired? What is the purpose of the AR15 again? Nobody has told me. Funny thing...nobody has disputed my claim that the AR15 was designed to kill as many PEOPLE as possible in as short a time as possible. Why do we need guns like that?
Don't need 30 shells......that's the point. Maybe 3-5 depending on distance and how far apart the target is.....further from the target, the greater the spread increasing the hit targets.
So eliminate all AK-47's and they'll go with sawed off shotguns either semi-auto or pump action (which is about as fast as a semi) with 00 buckshot and sling cartridge belts and double bandoliers.....nice touch.....probably more efficient than an AK.
Spread is, give or take about an inch per yard......