diff --git a/sql/world/base/ammo_stacks.sql b/sql/world/base/ammo_stacks.sql
new file mode 100644
index 0000000..ddcba0f
--- /dev/null
+++ b/sql/world/base/ammo_stacks.sql
@@ -0,0 +1,2 @@
+/* In 3.1 all ammo was changed to stack to 1000. This reduced the usefulness of quivers and ammo pouches, so it is more than just a QoL change, unlike other stack size changes. */
+UPDATE `item_template` SET `stackable` = 200 WHERE `stackable` = 1000 AND `InventoryType` = 24;