At our last club meeting a guy showed me something I've never seen before. He is one of these SHTF survivalist types.
He showed me a 308 case with a red plug in it. What he says he did was cast some .310 round balls and run the through a Lee sizer. Then he loaded the round with Trailboss and seated the ball to the bottom of the case neck. Then he melted bullet lube and poured it in flush with the case mouth.
I have heard of shooting round balls as squib loads but nothing like this.
What are the chances of any kind of accuracy? What the heck would you use that for?