If you shoot for long enough, you will be surprised what you will see. Inverted primers, wrong caliber, unfinished bullet heads, the list is endless. Add in what you do yourself and you will have quite a list. The bottom line is that you are responsible for what you put in the chamber. PAY ATTENTION PEOPLE!
Though certainly an old post, someone took an interest since there are few new posts this time of year. The reversed bullet is rare but happens. In most 40cal pistols this probably would not feed as it would not pass the "plunk test" and hit the lands before the pistol goes into full battery, but in some guns it might feed. If it did feed it would most likely fire without incident, though you would notice a strange shaped hole in the target if you looked closely enough.
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