My short "canoe gun" is a bit awkward to load standing up.
I "poacher-stocked" it (see old illustrations or book THE PACKINGHAM GUN COLLECTION) to correct it being butt-heavy.
I use 3 fg in the short 24 ga./.58 barrel.
Coned the muzzle for easier loading with patched ball and added a low open rear sight.
Gun is as accurate as I can hold to 30 or 35 yds., reasonably accurate to 75 yds.
I load 1/2 to 7/8 oz of shot.
In small ga guns you don't have the pellet count to load the #5 shot I prefer so I load #6 shot or #7.
Short barrel seems to do better with 3f than 2 f, and I can prime with it.
one modification that I REALLY like is the steel loading rod I made from aircraft tubing. (Lighter than solid steel)
Soldered a jag head on one end and threaded the other for worm, breech scraper, etc.
Browned it.
(I can broil meat on it or blow thru it to help a weak start to a fire.)
I prefer circle Fly wads since there is less fire danger than paper wadding.
Most versatile gun I have owned (Am mid-70s..Been shooting ML off & on since age 14.)
Davo