diff --git a/data/json/items/gun/22.json b/data/json/items/gun/22.json
index 2c117df84c7d..51516b909034 100644
--- a/data/json/items/gun/22.json
+++ b/data/json/items/gun/22.json
@@ -291,6 +291,7 @@
     "dispersion": 600,
     "durability": 5,
     "min_cycle_recoil": 39,
+    "magazine_well": "50 ml",
     "faults": [ "fault_gun_blackpowder", "fault_gun_dirt", "fault_gun_chamber_spent" ],
     "magazines": [ [ "22", [ "j22mag" ] ] ]
   },
diff --git a/data/json/items/magazine/22.json b/data/json/items/magazine/22.json
index 0e6263198d24..1c4c1e348140 100644
--- a/data/json/items/magazine/22.json
+++ b/data/json/items/magazine/22.json
@@ -132,7 +132,7 @@
     "name": { "str": "Jennings J-22 magazine" },
     "description": "A cheap 6-round steel box magazine for the Jennings J-22.",
     "weight": "55 g",
-    "volume": "27ml",
+    "volume": "60ml",
     "price": 2800,
     "price_postapoc": 100,
     "material": "steel",