I'm looking for a book ...

Or a movie. It's not super-important, but I can't think of it, and it's nagging at me.

There were named bullets involved. Bullets with named carved on them, that will always find their way to the heart of whoever's name is engraved on it -- and I think the named bullets in question found their way to someone else's heart, because the second person had the same initials. Or nickname. Or name. Or something.

If you have any idea what this might be from, please let me know. Because I can almost think of it, but not quite.