One pull of a 12 guage trigger sends 9-20 buckshot projectiles down range depending on the load.
That said, the 12 is quickly falling from favor and has largely been replaced in the military, LE and a great many civilains in favor of a short barreled AR. I guess most folks are discovering that
but 6-8 shots from a much slower and higher recoiling 12 gauge pump action shotgun is considered optimal?
this is not optimal at all.