registration is free , easy and welcomed !!!
Got to take that back, I see Fleet Farm has some according to their web page. Not marked Supremes, but are the same speed, no idea what wad they are using. Might have to pick up a box.Ches.
For those interested here is a link to a YouTube video that features a guy taking apart one shell of each and does a compares side by side all of the components used in making Winchester Supreme and Winchester XX turkey shells.As best I can tell they both are made using the same shot, buffer, shot cup and wadding, or essentially the seem to be the same exact shell.https://ic.carid.com/bushwacker/items/20962-02-close-up_1.jpg