I have photographed a number of artillery projectiles, just as they are, in a barn. The tractor wheel is to give some idea of scale. I haven’t done a detailed list of what there is, they are too numerous, I just snapped some photos of what could be the basis of a good beginners collection. The photo quality is poor I’m afraid, I can go back to look again if anyone has a specific query.
The types are mostly Armour Piercing (AP), Armour Piercing, Capped, Ballistic Capped (APCBC), Armour Piercing Discarding Sabot (APDS), Proof shot and a few smoke and illuminating odds and ends. There is a mixture of fired and unfired projectiles.