Working on putting a collection of Grenade Launcher and the related items. I know the Germans used a "wood" cartridge to fire the grenade. The 7.92x54 (8mm) cartridge with wooden bullets are fairly common and I have some but I suspect they used a round with a shorter wood bullet for the rifle grenades. Do any of you know the facts on this? Also if you know of any legit grenade launcher cartridges for sale I'd really appreciate hearing from you. Thanks in advance for any time spent in response.