Actually it is possible to fire two weapons at once, even two rifles or shotguns. I see two as the practical limit or impractical but possible, depending on how you view it. I am sure I could handle a couple of Marlin .22 semiauto rifles at once and could actually hit something at short range. Two revolvers or pistols are quite doable, at short range I could possible hit a beer can with my right hand and a semi truck with my left hand.