A round ball in a shot cup that will give you a nice sliding fit inbore and no choke constriction will shoot as well as the old 'trade guns'.
What a heck ofa idea! Anybody try this in a 20 ga. fowler? I mean somethig like a fusil de chasse.
Richard & Blake,
Following not my idea (Ajay @ shotgunworld), but works well (on a pie plate @ 50 yards) in a 20g Rem 870 smoothbore youth slug gun;
20 ga Trap Commander wad
28ga 1/8" nitro card inside the shot cup
.575 285g Lee RB on top the 28ga card
Load in 2 3/4" Win AA/HS hull with a fold crimp
I don't want to publish the powder/amount but if you know me, send a PM and we will talk.
I am loading a bunch of these, at reduced velocity, approx 1,200 fps, for my wife & son to use in the 3 gun shoots. Beats the heck out of paying a buck a piece for foster slugs to blow up clay pidgeons and knock over steel plates.
I think the key to these shooting fairly accurately out of a smoothbore is a cylinder choke. Your results may differ.
I plan to load these same round balls to around 1600 FPS and and see how they work out of my fully rifled Pardner 20ga.
BB