My mistake, I assumed that you were talking about smokeless as the 'Nitro' loads are actually the early Cordite loads.
No, any load using a Nitrocellulose based load were in the time period sometimes called Nitro loads, it is a term I prefer rather than smokeless which is not always true.

BTW in English gun nomenclature nitro often, but not always mean cordite loads. Some English rounds have always used other than cordite after the switch from black powder.
