An important lore question: what cartridge/caliber do the turrets in Portal fire? 5.56? I need to know this for reasons. (No i am totally not making a functioning Portal turret that shoots live ammunition irl, no no)


Probably 9MM due to how long it takes to kill Chell

Commando Booce

Maybe. Could also be .45 ACP but the turrets take a ling time to kill Chell, so 9x19MM.