diff --git a/code/modules/projectiles/projectile/bullets.dm b/code/modules/projectiles/projectile/bullets.dm
index 6e75be6c4e8..feb4f6a39c8 100644
--- a/code/modules/projectiles/projectile/bullets.dm
+++ b/code/modules/projectiles/projectile/bullets.dm
@@ -78,7 +78,7 @@
 
 /obj/item/projectile/bullet/armourpiercing
 	damage = 17
-	armour_penetration = 30
+	armour_penetration = 10
 
 /obj/item/projectile/bullet/armourpiercing/wt550
 	damage = 15