It would seem to me that a 'jug choked' ML would pose no particular 'problem' loading, but would certainly add to the effectiveness of the gun at distances beyond 25~35yds.
If someone had figured out that methodology early on they would sure 'nuf had a leg up on the rest of their fellow fowlers.
BTW,HJ, those are wonderful pics and explanations on your turkey adventures, thanks for sharing them w/us.
Yes, people jug choke MLs all the time *NOW*, it works. But there are no surviving examples of 18th century guns or even 19th century that I know of. There are no mentions of choking in ML guns by people like the Greeners (W circa 1835 and W.W. in the 1890s) at least not prior to 1827 when choke boring was apparently invented (reinvented?).
We do have examples of people trying to choke guns in the 18th century but failing to improve the patterns or even making them worse according to the page reproduced above.
Dan
