than the pistol, to 20-30 ft, no faster than the auto rifle at such ranges, no ap capability, very limited mag capacity, Buckshot has very limited ability against cars (about like a .22 rifle has) Slugs just make the shotgun a VERY poor rifle, there is no feasibility in suppressing a shotgun's blast or flash. Most have no rustproofing, luminous sights are a $200-$300 custom proposition, etc. When you look at the TIMES posted for hits, at various ranges, the pistol and the rifle are far superior to the shotgun, except for a VERY narrow range, of 7/20-25-40m, (depending upon the load and the choke) Even at the shotgun's "ideal" range, the typical bozo with a pump 12, and no ear protection, can't hit man targets (either partial toros OR cover using heads) as fast as can the skilled man with a canned 223 auto rifle.