Anyone familiar with guns and aircraft KNOWS. Anyone familiar with just guns does NOT.
Not quite sure what you're getting at here, but I'm as familiar with guns as the next guy, at least to the point that I can hit what I'm aiming at with a rifle, shotgun, and pistol, and I've read enough solid information provided by documented experts in aviation design to know that "explosive decompression" from gunfire is a Hollywood myth, promulgated largely by anti-RKBA factions as a reason to keep Americans disarmed.
The main voice asserting for "explosive decompression" via gunfire in this thread is a self-proclaimed expert, who has provided neither his bona fides, nor any evidence of any real-life instances of "explosive decompression" by gunfire.
In short, we have a set of anonymous bits traveling over the Internet that insist "trust me, I know what I'm talking about".
Thanks, but no thanks.