That's not a bullet, dude. That's a .223 case (5.56 if it's military.)
I bought one of those to carry with me, just in case. Seems like it would be a perfect utility to help get you home, should the bike fall and break the shift lever....or invest in the Cycle Pirates folding lever:
i got a black one - seems CP is out of stock, but lots of retailers carry them.
Internet forums are funny things. If someone posts a topic that has been previously discussed, they get told that they should search before they post. If they search before they post and revive an old thread, they get asked why they revived a thread from years ago...I'm still trying to figure out why this thread was revived from 5 years ago...