diff --git a/data/mods/More_Survival_Tools/ammo.json b/data/mods/More_Survival_Tools/ammo.json
index a700a72bec820..ebaf5d0e9b600 100644
--- a/data/mods/More_Survival_Tools/ammo.json
+++ b/data/mods/More_Survival_Tools/ammo.json
@@ -19,26 +19,5 @@
     "dispersion": 240,
     "loudness": 0,
     "effects": [ "NEVER_MISFIRES" ]
-  },
-  {
-    "id": "bolt_bone",
-    "type": "AMMO",
-    "name": "bone crossbow bolt",
-    "description": "A sharpened bolt carved from bone, with fletching attached.  It's light, providing decent damage and accuracy.  Stands a good chance of remaining intact once fired.",
-    "weight": 54,
-    "volume": 1,
-    "price": 500,
-    "bashing": 1,
-    "material": "bone",
-    "symbol": "=",
-    "color": "white",
-    "count": 10,
-    "ammo_type": "bolt",
-    "range": 1,
-    "damage": 12,
-    "pierce": 3,
-    "dispersion": 145,
-    "loudness": 0,
-    "effects": [ "RECOVER_10" ]
   }
 ]
diff --git a/data/mods/More_Survival_Tools/obsolete.json b/data/mods/More_Survival_Tools/obsolete.json
new file mode 100644
index 0000000000000..cc5e32862fef5
--- /dev/null
+++ b/data/mods/More_Survival_Tools/obsolete.json
@@ -0,0 +1,12 @@
+[
+  {
+    "type": "recipe",
+    "result": "bolt_bone",
+    "obsolete": true
+  },
+  {
+    "id": "bolt_bone",
+    "type": "migration",
+    "replace": "bolt_crude"
+  }
+]
diff --git a/data/mods/More_Survival_Tools/recipes.json b/data/mods/More_Survival_Tools/recipes.json
index 422ab03e62619..199f9c15067ba 100644
--- a/data/mods/More_Survival_Tools/recipes.json
+++ b/data/mods/More_Survival_Tools/recipes.json
@@ -212,33 +212,6 @@
     "tools": [ [ [ "press", -1 ], [ "material_sand", -1 ], [ "clay_lump", -1 ] ], [ [ "surface_heat", 10, "LIST" ] ] ],
     "components": [ [ [ "lead", 60 ], [ "gold_small", 60 ] ] ]
   },
-  {
-    "type": "recipe",
-    "result": "bolt_bone",
-    "category": "CC_AMMO",
-    "subcategory": "CSC_AMMO_ARROWS",
-    "skill_used": "fabrication",
-    "skills_required": [ [ "survival", 1 ] ],
-    "difficulty": 2,
-    "time": 12500,
-    "autolearn": true,
-    "qualities": [ { "id": "CUT", "level": 1 } ],
-    "components": [
-      [ [ "adhesive", 1, "LIST" ], [ "filament", 20, "LIST" ] ],
-      [ [ "bone", 5 ], [ "bone_human", 5 ], [ "bone_tainted", 10 ] ],
-      [
-        [ "feather", 10 ],
-        [ "duct_tape", 40 ],
-        [ "paper", 40 ],
-        [ "bag_plastic", 1 ],
-        [ "bottle_plastic_small", 1 ],
-        [ "box_small", 1 ],
-        [ "plastic_chunk", 1 ],
-        [ "aluminum_foil", 40 ],
-        [ "cash_card", 2 ]
-      ]
-    ]
-  },
   {
     "type": "recipe",
     "result": "snare_trigger",