Do
Dose anyone Remember "Active" Shotgun shells, I Still have one in My Shell collection "NO BRASS " Just a Thin perforated steel disc in the head of the shell so the Extractor doesn't pull through and Extra Grip for the primer so it dosen't set back during ignition ( Late 80's ). Now a New type is being tested by the Military in Rifle calibers,,, .223, 308, 300 Norma Mag, & .50 Bmg... soldiers can carry 45% More ammo, for the same weight + The Barrel stays cooler during a firefight....
Sorry for the Devert... Worked in the Firearms industry for 9 years, prior to becoming LE...