Mclean- you didn't tell us the use you intend. Of for reinactment, know that the issue military round used grossly undersized balls - ie: their ctgs. were quite loose - and innacurate, even for a smoothbore.
What Dan and I make are tighter loads that give great accuracy in rifles (Dan's picture shows a paper ctg. in his swivel-breech double barreled rifle. In my .69 (14 bore) rifle, the paper ctg. accuracy is the same as patched round balls - ie: 1" to 1 1/2" for 5 at 100 meters off a rest. i can go back and forth from patched to cgt. and they shoot into the same group, ball after ball. I am using a ball that is .006" to .007" smaller than the bore, along with 2 wraps of bond - about .0035" thick. It does not tear at the muzzle due to the nice smooth crown.
The tapered ctg. is handy- when you tear off the small end, there is little spillage, compared to the large diameter of the 'squareish' military ctg. I simply tear off the small end and shove it into the muzzle. By the time the rod is out, the powder has drained into the breech. The 'ctg. is then shoved down onto the powder hard to compress the paper between the ball and the powder. Upon ignition, the wadded up paper acts as a barrier wad between the powder and ball and seals the powder gasses behind. This work in quite snug loads. In my 14 bore rifle,the rifling presses quite hard on the paper and you must choke up on the rod the rod to get it started. It's easy, though and fast. With the caplock 14 bore rifle, I've fired, loaded and fired again in 8 seconds, hitting an 8" gong at 50 yards each shot- the time starting on the first shot. Capping is done with a backed, leather wheel capper that holds 24 caps. It is VERY fast.
When I make the ctgs. I make a number of tubes with closed ends, glued up the sides and botom folded and glued (white glue) so I have 10 or more, tapered tubes. I then drop in the powder charge I'm going to use. For my rifle, it's 165gr. 2f GOEX, then a ball, then fold the paper over the ball and glue. I don't use lube, but that's a possibility if you want. I've carried these in my parka pocket all hunting season without damage.
I initially started using these in the lat 1980's due to lacking a decent cold weather patch lube as at -40 to -50, most lubes are hard and effect ball flight. I found the paper ctgs. allowed me an easy loading 10shots without problem and identical accuracy to patched balls. I could then load a 3 dram 2f cleaning load with a heavily wetted (dripping wet) patch and round ball, fire that and the bore would then allow another 10 ctg. to be fired. (range testing showed no loss in accuracy for those 10 shots. I suspect smaller bores might be more effected by the building fouling.
FRENCH CTG.
ENGLISH CTG.