I was going to make a similar answer to LUTNIT but I was late for work, hes right a Mod will move it later, as for now it sounds like you did some internal damage with that bb, you might have to take it appart of take it to a local gun doctor to help you find out what is damaged, what needs to be fixed, ect.
I had first thought you had been dumb enuf to reload a pre fired bb, but if it was from a new bag, the manufacture should be somewhat liable for having a bad bb in there.
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