Slingshots in a Medieval Battle?

Jörg Sprave pulls out a slingshot with a 2m draw that puts 20mm steel balls through ply wood. Interestingly rubber could have been made in medieval times and this is clearly a seriously powerful weapon, so would they have used it? If you would like to help support the channel please visit my sites https://todcutler.com​​ for excellent budget historical weapons https://todsworkshop.com​​ for custom historical work and for T shirts and merch please visit https://todsworkshop.creator-spring.com/