Originally Posted by
Toonces
To me the 16 GA look like paper, by the appearance and the fact that I’ve never seen those paper/wax end seals on plastic shells. I have paper shells that are ribbed like that. But who knows what they did in the transition years.
“Wetproof” may just be heavily waxed. I have a Herter’s shell heater I inherited from my Grandfather. It is an electrically heated aluminum mandril that you slide the fired shell over and it forces the wax to the outside of the paper.
Do it for Science...