It really makes me cringe to see someone shooting anything, but particularly a breech loading rifle using paper cartridges, without proper eye protection. Otherwise, a most instructive video on the use of a Zündnadelgewehr. I have often wondered what the life expectancy of a Zündnadel might be, given that the tip of it is right in the midst of the burning propellant each time the rifle is fired. I am also curious about the ammunition, which appears to be factory made. How available is it, how expensive is it and how much demand is there for such ammunition?