Tanoose, found that sight after posting. Sabots in 20 offer an opportunity.
jbtazgrabber thanks for the offer, but I need 20 ga slugs. Will probably try the sabots after season. Have been saving my hulls so I can reload. Hunting buddy has a Mec with 20 ga hardware so the sabots will get a go. Will have to check out e-bay for 20 ga slugs. Again, thanks for the info. Will keep you posted after season so we can all benefit.