Some wonder if only trying for foster slug accuracy at 200 feet
or 60-70 yds wasn't the best goal in a smooth bore, But if you get it
at 20% of the cost you've made a big gain. And most deer here are
killed at 30 yards. And putting slugs inside of thickwall wadcups,
with corresponding nitro wads under slug to get slug to the front
of cup, slug glued in, makes them long and a little more accurate than
foster slugs. Reason is the forcing cone in smoothbores. With the
long nose, heavy combination of wadcup/slug, the back of the
wadcup is in case yet while the front gets into the bore, past the
forcing cone, for a straight start. Little better accuracy. Like the
accurate US-S smoothbore locked on base slug, that is long.
The longer the nose heavy slug/sabot combo is, the truer it flies.
And most of these combinations work in brass cases with
thick walls like RMC cases. They fit real tight for my cases. Ed