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
The development of field artillery had moved into a rather complicated ballistic science by the 1860s. West Point was turning out very talented engineers in ordnance by the 1850s. Look up the Rodman Gun and its inventor.
The only thing I know for sure is my great uncle was part of the Enola Gay flight crew. My Grandfather had secured a copy of the schematics to Fat Man and Little Boy done by engineers like we do CAD these days. Unfortunately he passed away a few month back,,,,,,just before that I had asked him about the sheet and he said oh that one where your great uncle jimmy was with Enola Gay crew and those bomb schematics. Its' been 6 months and we haven't found it yet,
A very interesting item of war was the grenade. This is a very old weapon. The Corps of soldiers who were trained to throw them were the Special Forces of their days. The Grenadiers were the elite units of the past.