diff --git a/data/json/items/magazine/22.json b/data/json/items/magazine/22.json
index fe31be679e63a..c48d8d8b141f7 100644
--- a/data/json/items/magazine/22.json
+++ b/data/json/items/magazine/22.json
@@ -5,11 +5,11 @@
     "type": "MAGAZINE",
     "name": { "str": ".22 8-round speedloader" },
     "description": "This speedloader can hold 8 rounds of .22 and quickly reload a compatible revolver.",
-    "weight": "64 g",
-    "volume": "250 ml",
+    "weight": "32 g",
+    "volume": "47 ml",
     "price": 600,
     "price_postapoc": 100,
-    "material": [ "steel" ],
+    "material": [ "steel", "plastic" ],
     "symbol": "#",
     "color": "light_gray",
     "ammo_type": [ "22" ],
@@ -30,8 +30,9 @@
         "description": "An unusually-shaped pan magazine for the American-180."
       }
     ],
-    "weight": "760 g",
-    "volume": "500 ml",
+    "weight": "1039 g",
+    "volume": "892 ml",
+    "longest_side": "14 cm",
     "price": 7300,
     "price_postapoc": 250,
     "material": [ "steel" ],
@@ -56,11 +57,12 @@
         "description": "An unusually-shaped, polymer pan magazine for the American-180."
       }
     ],
-    "weight": "500 g",
-    "volume": "500 ml",
+    "weight": "779 g",
+    "volume": "892 ml",
+    "longest_side": "14 cm",
     "price": 7300,
     "price_postapoc": 250,
-    "material": [ "plastic" ],
+    "material": [ "plastic", "steel" ],
     "symbol": "#",
     "color": "light_gray",
     "ammo_type": [ "22" ],
@@ -82,8 +84,9 @@
         "description": "An unusually-shaped pan magazine for the American-180."
       }
     ],
-    "weight": "600 g",
-    "volume": "500 ml",
+    "weight": "1133 g",
+    "volume": "973 ml",
+    "longest_side": "15 cm",
     "price": 7500,
     "price_postapoc": 300,
     "material": [ "steel" ],
@@ -108,11 +111,12 @@
         "description": "An unusually-shaped polymer pan magazine for the American-180."
       }
     ],
-    "weight": "660 g",
-    "volume": "500 ml",
+    "weight": "1258 g",
+    "volume": "1081 ml",
+    "longest_side": "16 cm",
     "price": 8000,
     "price_postapoc": 400,
-    "material": [ "plastic" ],
+    "material": [ "plastic", "steel" ],
     "symbol": "#",
     "color": "light_gray",
     "ammo_type": [ "22" ],
@@ -134,11 +138,12 @@
         "description": "An unusually-shaped polymer pan magazine for the American-180."
       }
     ],
-    "weight": "770 g",
-    "volume": "600 ml",
+    "weight": "1258 g",
+    "volume": "1081 ml",
+    "longest_side": "17 cm",
     "price": 8000,
     "price_postapoc": 400,
-    "material": [ "plastic" ],
+    "material": [ "plastic", "steel" ],
     "symbol": "#",
     "color": "light_gray",
     "ammo_type": [ "22" ],
@@ -152,8 +157,9 @@
     "type": "MAGAZINE",
     "name": { "str": ".22 19-round tube loader" },
     "description": "A tube which holds 19 rounds of .22, designed for quick reloading of a compatible rifle with a tubular magazine.",
-    "weight": "180 g",
-    "volume": "250 ml",
+    "weight": "10 g",
+    "volume": "14 ml",
+    "longest_side": "49 cm",
     "price": 1200,
     "price_postapoc": 100,
     "material": [ "steel" ],
@@ -178,7 +184,8 @@
       }
     ],
     "weight": "60 g",
-    "volume": "250 ml",
+    "volume": "72 ml",
+    "longest_side": "9 cm",
     "price": 1700,
     "price_postapoc": 100,
     "material": [ "steel" ],
@@ -202,11 +209,12 @@
         "description": "An extended 25-round stick magazine for the Ruger 10/22, known as the BX-25."
       }
     ],
-    "weight": "180 g",
-    "volume": "500 ml",
+    "weight": "245 g",
+    "volume": "159 ml",
+    "longest_side": "185 mm",
     "price": 7900,
     "price_postapoc": 200,
-    "material": [ "steel" ],
+    "material": [ "steel", "plastic" ],
     "symbol": "#",
     "color": "light_gray",
     "ammo_type": [ "22" ],
@@ -227,11 +235,12 @@
         "description": "A removable 10-round rotary magazine for the Ruger 10/22 which allows the magazine to fit flush with the bottom of the stock."
       }
     ],
-    "weight": "80 g",
-    "volume": "250 ml",
+    "weight": "57 g",
+    "volume": "34 ml",
+    "longest_side": "4 cm",
     "price": 1400,
     "price_postapoc": 100,
-    "material": [ "steel" ],
+    "material": [ "steel", "plastic" ],
     "symbol": "#",
     "color": "light_gray",
     "ammo_type": [ "22" ],
@@ -253,8 +262,9 @@
         "description": "A standard capacity magazine for the popular S&W 22A pistol."
       }
     ],
-    "weight": "70 g",
-    "volume": "250 ml",
+    "weight": "60 g",
+    "volume": "72 ml",
+    "longest_side": "9 cm",
     "price": 2100,
     "price_postapoc": 100,
     "material": [ "steel" ],
@@ -280,6 +290,7 @@
     ],
     "weight": "55 g",
     "volume": "27ml",
+    "longest_side": "7 cm",
     "price": 2800,
     "price_postapoc": 100,
     "material": [ "steel" ],
@@ -303,11 +314,12 @@
         "description": "A 10-round box magazine for the Walther P22."
       }
     ],
-    "weight": "25 g",
-    "volume": "126 ml",
+    "weight": "60 g",
+    "volume": "44 ml",
+    "longest_side": "10 cm",
     "price": 3250,
     "price_postapoc": 100,
-    "material": [ "steel" ],
+    "material": [ "steel", "plastic" ],
     "symbol": "#",
     "color": "light_gray",
     "ammo_type": [ "22" ],
diff --git a/data/mods/TEST_DATA/known_bad_density.json b/data/mods/TEST_DATA/known_bad_density.json
index 8bc889ed4c467..8791862e7663f 100644
--- a/data/mods/TEST_DATA/known_bad_density.json
+++ b/data/mods/TEST_DATA/known_bad_density.json
@@ -51,7 +51,6 @@
       "hot_sauce",
       "yeast",
       "candy3",
-      "a180mag4",
       "liquid_soap",
       "chem_aluminium_sulphate",
       "bot_lab_security_drone_GR",
@@ -140,7 +139,6 @@
       "k_gambeson_xs",
       "arcfurnace",
       "maple_sap",
-      "a180mag3",
       "chem_washing_soda",
       "peanutbutter_imitation",
       "casting_mold",