RL5 Roll with ends spread or flattened to form a strut. They sometimes retain the impressions of pipe stems or bowls, through contact with these objects while still plastic. SP1 Straight strap. SP2 Serpentine strap. Wad definition and typology.
Wads usually retain imprints of the compressing objects on opposing surfaces.
When fired they are unable to serve the same function again and are generally abandoned as a waste product. WA1 Flattened roll wad. WA2 Crescent section wad. WA3 Flattened ball wad. WA4 Wad formed by pressing a roll into a joint and smoothing it over.