I just pulled a Hemi sig out of my cooler. This was from a box that I bought from another person that used to have his own shop. It that was left over stock from there, well aged.
I sparked it, burned back about an inch then all of a sudden the fire tunneled and poped out of the wrapper about 3/4 inch behind the burn line!
I just clipped it. Looked to have had a void in the filler. No signs of beetles or anything on any of them.
Never had that happen before.
