Put in a few miles on horseback and by canoe - over 100 miles last summer on a horse and a short rifle or smoothbore - with a barrel of around 28" or so and a sling would have come in mighty handy - getting on and off a horse is tough sometimes with a full length fowler or rifle. There is ample enough evidence and documentation of shortened guns to make them historically correct in most any setting or region (except perhaps military units)