Well Heck MAKO
PLUS ONE (mostly) for Abilene. It is rather well known I have a preference for "Short" barrel guns. My Go-To Cap Guns are custom built Pietta SNUBBIES with Three-n-Three Quarter inch barrels. However, since we are considering Suppository Shooters, my normal knee jerk reaction is to cut the Barrels to the Ejector Housing.
My Go-To Armi San Marco conversions were set up this way although most of my "Parts Stash" guns were OEM at 7 1/2 inches. I only used the 7 1/2 inch guns at match when shooting Josey Wales. Used the long barrel guns as "rifles." Still, those ASM conversions were the most accurate SAs I have ever owned. From a rest, they would shoot a tight "Cloverleaf" real regular. Was shooting a 125Gr TC bullet with 3.3Gr TightGroup. Super nice load.
As an aside, my current Pietta 1860 Conversions actually have three sets of barrels. A set of 1851 Navy pattern barrels cut at the Ejector Housing, a set of 1860 Army pattern barrels cut at the Ejector housing and a set of Eight inch Army pattern barrels just for Ha Ha's. My Alter Ego, Hacksaw McGurk get the shakes and begins to drool whenever he spies those eight inch barrels