12 guage identification


#1

I have two 12 guage cartridges which i need help identifying their purpose and significance if any.

The first a black plastic low brass winchester with Winchester PD 5 on the side the other
a Paper low brass by Sellier and Bellot with S-BALL PLASIK on the side
Thanks don


#2

About cartridges S-Ball Plastic is ready detailed article, that is of will printed in some numbers IAA Journal.
V


#3

Vit’s answer is that there will be an article on the S-Ball Plastik Czech shotgun cartridges in an upcoming issue of the IAA Journal. I have seen the article and it should be interesting and answer your question on these rounds.