will this work?

_maps/RandomRuins/LavaRuins/lavaland_crashed_starwalker.dmm

@@ -1718,7 +1718,7 @@
 /obj/effect/turf_decal/industrial/outline/yellow,
 /obj/effect/decal/cleanable/cobweb/cobweb2,
 /obj/structure/closet/crate/secure/gear,
-/obj/item/storage/box/ammo/c10mm_surplus,
+/obj/item/ammo_box/c10mm/surplus,
 /obj/item/weaponcrafting/stock,
 /obj/item/weaponcrafting/stock{
 	pixel_x = -6
@@ -2659,7 +2659,7 @@
 	name = "armory locker";
 	req_one_access_txt = "1"
 	},
-/obj/item/storage/box/ammo/a12g_buckshot,
+/obj/item/ammo_box/a12g,
 /turf/open/floor/mineral/plastitanium,
 /area/ruin/unpowered/crashed_starwalker)
 "Rn" = (