Re: BitPistol - Are you smart enough to solve these puzzles? >>>TEST your brains <<<
There is a picture of gun on the puzzle, it is certainly one given in conditions of puzzle, pretty sure it has automatic firearm mode, mby it is come kind of clue?
But most firearms of that type are not exclusively automatic. Generally they will have a semi-automatic/single shot fire mode as well. 
Like a lot of puzzles, there will always be room for interpretation unless the puzzle is relatively simple and straightforward. However, in my opinion, it would make sense to take the simplest view, unless the puzzle stipulates otherwise, to avoid unnecessarily complicating things. eg. postulating about shatter proof glass etc.
So true, however the given puzzle should have only one correct solution, no matter whether gun was shooting auto or single mode, and seems like the shatter pattern is the main evidence here