<prompt> Use of wadding in a smooth bore gun rifle produces all except :Causes fatal injuriesHelps in lubricationOptimum pressureSealing the air  <response>: A i.e. Causes fatal injuries Caridge case of shotgun has percussion detonator cap at the base of rim and top wad retaining cardboard at topQ. Wad is responsible for separation, sealing, optimal pressurization lubrication but not for fatal injuriesQ. 