^
Interesting!
I had to check out the LightField IDS after your suggestion assuming it was a sabot slug. I was un aware of such a sabot slug on the market not just capable but designed to be compatible for smooth and rifled barrel slug shooting.
"Commander IDS Plus 3″ 12 ga.
EDITED BELOW after my 1st comment above.
The Lightfield IDS Commander Plus was designed as a high velocity, extremely stable, extended range Sabot Slug for use in modern rifled barrel and smooth bore shotguns. There is not another slug round on the market like it. The IDS 3″ Commander incorporates a 1 3/8 oz (600 grain) 73 caliber slug producing 3850 ft/lbs at the barrel and an insane 1324 ft/lbs @ 150 yards. TKO= 107!! The patented IDS design incorporates an impact-discarding Sabot that aids stability in the wind and produces a controlled expansion slug for deeper penetration for larger big game animals."
Interesting!
EDIT
RE READ.
I got all excited it is defiantly just a sabot slug designed for rifled barrels only and of course it will out perform a smooth bore foster (I would hope! LOL) so I initially read the description wrong.