Recon89
Working on a Marder III and want to get the right colors for ammo which will go in the ammo bins.
I doubt you would actually see the ammo in the rack. On the initial Marder III, the ammo went "head first" into the racks, with only the end of the shell exposed. In turn, the racks had covers, which have been omitted from the kit.
I think the only time you would see the ammo would be when the crew was re-loading the racks or when a round was extracted to load the gun.
On later variants of the Marder III, (ausf.H & M) the rounds were stored upright in tubes with the heads partially exposed.