>>64206834
They weren't any weaker than any other shotshell. shotshells are already very low pressure compared to normal ammo.

Picrel is another cartridge I always thought looked cool, the old Westley Richards Explora (12ga) and Fauneta (20ga). They were for ball-and-shot guns, shotguns with rifled chokes. The projectile is actually a lightweight hollowpoint slug that fits entirely down inside the case. The cone sticking out the front is a hollow sheetmetal aerodynamic cap.