The 12 ga. shotgun has a long list of advantages over other weapons. It's wide range of specialty ammo makes it an extremely versatile weapon. Keep in mind that a shotgun's primary mission is close range.
Now shotguns fire pellets that scatter and have sweet FA accuracy over any decent distance so doesnt that make it a bad choice of weapon?
Our armed units along with the UK's ARV's all carry H&K MP5 carbines. accurate, reliable and a dozen shots before reloading. Of course they also have an option on other weapons but these are 'standard'.
Various other forces use M16 as their carbine so Im left wondering, why? When it comes to shotguns?