Comment: I have a question, any people here familiar with guns and locks?

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I have a question, any people here familiar with guns and locks?

With all the confusion and conflicting information coming out on this, one thing stands out in my mind. They reported that the school had a new security door that was shot open. I read a post by a locksmith, he stated that there is no way the guns listed could have simply shot off the lock. It's so common on TV, the guy shoots the lock and the door opens, he said that's not the case. He said the round would ricochet and most likely would jam the locking mechanism, sticking the door shut.

So the question is, can a gun simply shoot open a security door? I understand without knowing what kind of door, lock assembly or weapon involved it may be difficult to answer.

I was curious, so I did a google search on security entry door systems, seems there is an industry standard for bullet resistant doors. http://www.designguide.com/profileDetail.aspx?lid=62252