The Hudson's Bay Co. ordered Northwest guns in 24 ga. The French fusil de chasse de Tulle typically ran about .600"-.620", whereas trade guns from St. Etienne, France were all over the map from 28 ga. to 16 ga. Military muskets were quite large; the Brown Bess at about .72" and the French...
I like mine with worked spouts; lobes, facets, that sort of thing, maybe a hand whittled stopper, a domed butt plug with a staple, and simple, geometric designs scrimshawed at the base of the horn, & a capacity suitable for an early trade gun.
Within the general classification of the smooth bored gun, barrel lengths ran the gamut from 42" to 60"-72" during the eighteenth century. Bores ran from 28 ga to 10 ga. In the 19th century barrels shortened considerably. Trade guns were usually of smaller bore diameter than military muskets...
Nope, never shot the ram rod. But I did shoot the little brass end cap that came loose from a short starter once. They make a cute whistling sound as they fly down range.
The load I've settled on for my Track of the Wolf fusil de chasse is 2¼ dr. FFg Scheutzen, a thin leather wad, .610" ball, and tow or paper wad, primed with 4fg Goex, powered by a good sharp French flint.
For my Caywood Wilson I use the same 2¼ dr. load, a .015" patch and a .600" ball, same...
I have two trade guns; one is a Caywood Wilson, the other a Track of the Wolf fusil de chasse. Both have that pied de vache buttstock profile. Each requires a slightly different way of gun mounting.
With the Caywood, if I see no barrel and put the sight right on the target, the butt firmly in...
This is exactly what I do. I learned it from an article in Muzzleloader Magazine many, many years ago. The added advantage of this is you don't drop you flint leather in the mud or snow in the process of swapping out a worn flint.