Is this one on the right the current look of the standard Remington industrial slug product? I first noted it was not green(!) and no ribbed plastic. Also the addition of “8 GA” to the headstamp.
Edited to add:
Current Remington listings show this black cased load to be #0081-B and is the Magnum load 3 oz. Lead slug. Yellow cased rounds are Standard load 3 oz. lead slugs and green cases indicate zinc slugs in Standard 3 oz. and Magnum 2 and 3 oz. loadings.