You will be likely to encounter a couple of difficulties- the first being lack of literacy amongst the ordinary gun bunny of the day.
Remember that for that period of time, you will be speaking of smoothbore, direct fire (except for a few mortars), line-of-sight to target. Much that may have been taught, but not read, by the guy with the rammer in his hand.
However, why not ask the Motherland- US Army Field Artillery Museum, Ft. Sill OK? (580) 442-1819