went to the range today and tried to shoot my less than 6 month old Stevens 320 pump shotgun. The pump action worked, loaded a shell but all it would do when trigger was pulled was go "click" not firing any of the 10 or so shells I fed into the gun...the ammo primer was not dented and shells ejected like they should when pumped...any idea what is wrong...could not tell if firing pin was broken...
