Forty three years ago tomorrow on 02-12-1970 I was the unwilling and I would also say ungrateful recipient of one round of NATO 7.62 Ball whilst enjoying my all expense paid vacation in sunny Southeast Asia. Not wishing to receive another such gift especially through an act of negligence on my part I spent a couple of days last week constructing an anniversary present to myself. I spend about 50 t0 60 hours a week in my basement shop much of it tinkering with firearms (my own and those of several friends). Four concrete walls and a concrete floor do not make a very efficient bullet catcher and as I am much too old and worn out to attempt to dodge another round I built this. 150 lbs. of sand in a 15gal. 16ga. steel drum with 11/2" plywood baffles. 
This thing is there because in order to work on clean etc. my PISTOLS they must necessarily be unloaded and reloaded. If one should discharge due either to a malfunction of the weapon or my pea brain I DO NOT want said round zinging aground the four concrete walls! 
And to answer another post this barrel is for pistol caliber only as I am afraid that the hydraulic pressure imparted through the sand by a high velocity round would probably rupture the barrel.
