Hi guys, I am researching on older safecracking techniques and I have seen this very interesting method that they called
''jamshot'' which uses nitro to precisely blow the safe's door open. However as easy as it may seem , it is actually professional work.There is not much detailed info regarding this subject , I could only find a page from a Wayne Yeager's book. The problem is that the author explained the method but I can't simply get it . I've attached the link , if you find it easy for you to understand please explain it to me ( some basic drawings would be nice

). Thanks
http://www.[snip!]
Please note: This is for pure historical and educational purpose only. Do not even think to try these methods as they are so dangerous and illegal.