I would like to fine some 28ga slugs who make them. I know they would have to come from over sea. So how can I get some.

Paul; I have been looking for them as well just found them Ballistic products inc.They have a website, w/regards

Try two .490 round balls dropped into the shotcup you normally use. These work surprising well for me in a side by side choked skeet and skeet.

I stopped by the local gun store today and picked up a box of .535 RBs. Cost me $10 for a hundred. 28 gauge runs about .55 caliber cylinder bore. I'll check to make sure they drop through, weigh them and make sure to pick a recipe for a slightly heavier shot charge, patch them just like I would for a muzzleloader and load them ahead of a wad with the petals, trimmed. Adjust the space with cork wads cut with a half inch punch.

And this is all your fault.