I remember them well. I never had any myself but remember that they existed and found a bunch of them thrown away at our club. The head was apparently made of a harder plastic that would stand the force of extraction better than the body material, which was intended to crimp repeatedly. I also remember the one-piece Wanda shells and the Alcan-metal zinc attemp at somehing different. I even remember when the Winchester AA shotshells came out and were, for many years, the standard that every other maker tried to attain. Good move, Winchester bean counters!