It is misleading, deceiving, or merely frustrating.
Swaged ball and swaged round ball have 2 different meanings to me & back then as well. Swaged ball meant swaged conical bullet (ball) or swaged elongated bullet (ball), not a round ball. A Swaged round ball has only one meaning and that was a round ball made by the act of swaging instead of casting, which by 1830, about all the military balls were produced by that method, so various calibres were available on the market, but mostly .52cal. through .65 cal. but others as well.
Ball and conical ball were terms referring to bullets after the switch to concicals was complete & round ball guns were not normally built any longer. Some people used the terms long balls, conical balls, heavy balls or just plain balls describing various bullets for various arms.