When I rebuild an artillery cartridge I like to add weight to the case and projectile to simulate a real live cartridge. For the big cases I use wood stove pellets which are very close to the powder used, both in size and in weight. For smaller cases I use small grain rice. For projectiles I use rice or sugar.
What do you other guys use?
Is there any reason not to use things like sugar? I assume it is inert and will not harm either a brass case or a steel projectile. It doesn’t seem to hurt my belly at all.