Just out of curiosity have any of you brass shot shell shooters used/reloaded these 1987 Remington Ducks Unlimited commemorative brass shells?
Checking my 1987 Remington paper they were loaded with #5 shot.
No and I don't want to guess too much, but based on the pictures here and after a quick search, they should load similar to Mag Tech hulls. The ones in the photos appear to be using large pistol primers and I wouldn't rule out Remington having MagTech do a special run of the MagTech hulls with the Remington head stamp. The same may apply to the Track of the Wolf hulls.