BB's work just fine too! A word of caution about using epoxy. On the thin shell nosecones in LPR you may want to use a cold bath (ice cubes in a bowl) and keep the tip submerged as it heats up and cures out. This keeps the nose cone from deforming. This may be overkill for a small amount of epoxy, but safer than sorry.
All persons, living or dead, are purely coincidental-Vonnegut
97% of the time, I'm right-the other 5% doesn't bother me.
There comes a point in your life that looks just like all the other points you didn't notice either.
If I had a nickel for every dollar I spent on rockets, I'd have more rockets.
You may have had more fun in your life than me, but the chaos was undeniable.