Daryl
The question is "Is it a ball and shot gun" The term "Ball and Shot" refers to those guns which replicate a shotgun but can also shoot a bullet. They are basically the same weight as a normal shotgun and therin lies the difference. These guns were made between the mid 1880's and 1920, with some exceptions. I have a Westley Richards "Ball Gun" 10 bore, 14 lbs, express sights, which can not be considered a Ball and Shot Gun. It may be referred to as a Ball Gun or a Jungle gun, as it is not rifled.
I guess it is the terminology which can be misleading.