Originally Posted by Kayper
Thanks for he concern boys, I believe the crank and so on are not open inside the frame having taken them off already. Busckshot in that amount could be quite costly
Seatposts get stuck too; I have to extract one by extreme means every so often at work. You don't want sand in that interface if you can help it.
Zinc or copper plated BBs are cheap in quantity and would have many of the advantages of buckshot. I notice that most of the dead blow mallets I've seen recently have switched to steel shot from lead.