High Standard made a number of excellent pump and auto shotguns up until the company folded.
The shotgun's were usually sold as "Flite King" "Deluxe" and "Supermatic" models.
Quality was always good, especially on the pump guns, and many were sold to police departments.
These will handle any 2 3/4" shells including Magnum, but you might NOT want to shoot steel shot, since these guns were discontinued before steel was introduced. There MIGHT be a possibility that steel could damage the barrel.
Parts and some accessories are available from Gun Parts Corporation, who bought all the High Standard parts when the company folded.
www.e-gunparts.com