Minishells are mentioned in Jan 2000 Guns & Ammo.
1 1/2 inch shells in 7 1/2 shot, slug and buck. They won't cycle in autos, but the company will soon be bringing in a European-made scaled-down pump gun which should be of great interest to law enforcement agencies as the new minishells will nearly double the capacity of a tube magazine.
Slug weight=386 grains, velocity=1,250 from 20 inch barrel.
For details contact Centurion Ordnance Co., 11614 Rainbow Ridge, Helotes, TX 78023.
point308.