diff --git a/code/modules/projectiles/ammunition/caseless/rocket.dm b/code/modules/projectiles/ammunition/caseless/rocket.dm
index 8f119976461e..c6c3d738a8e3 100644
--- a/code/modules/projectiles/ammunition/caseless/rocket.dm
+++ b/code/modules/projectiles/ammunition/caseless/rocket.dm
@@ -22,7 +22,7 @@
 /obj/item/ammo_casing/caseless/cannonball
 	name = "cannonball"
 	desc = "A big ball of lead, perfect for shooting through windows and doors."
-	caliber = "30mm"
+	caliber = "100mm"
 	icon = 'icons/obj/ammo.dmi'
 	icon_state = "cannonball"
 	projectile_type = /obj/item/projectile/bullet/cball
diff --git a/code/modules/projectiles/guns/ballistic/launchers.dm b/code/modules/projectiles/guns/ballistic/launchers.dm
index 45963cd6d76b..5202b4a6462f 100644
--- a/code/modules/projectiles/guns/ballistic/launchers.dm
+++ b/code/modules/projectiles/guns/ballistic/launchers.dm
@@ -112,5 +112,6 @@
 	tac_reloads = FALSE
 	can_suppress = FALSE
 	force = 10
+	cartridge_wording = "cannonball"
 	fire_sound = 'sound/effects/bang.ogg'
 	pin = /obj/item/firing_pin