diff --git a/data/json/items/ammo/20x66mm.json b/data/json/items/ammo/20x66mm.json
index 5ef3bee49f18..3df875137e00 100644
--- a/data/json/items/ammo/20x66mm.json
+++ b/data/json/items/ammo/20x66mm.json
@@ -67,7 +67,7 @@
     "price_postapoc": 4000,
     "flags": [ "IRREPLACEABLE_CONSUMABLE" ],
     "count": 10,
-    "range": 20,
+    "range": 28,
     "damage": { "damage_type": "heat", "amount": 16 },
     "dispersion": 200,
     "recoil": 100,
@@ -129,8 +129,8 @@
     "count": 20,
     "stack_size": 20,
     "ammo_type": "20x66mm",
-    "range": 12,
-    "damage": { "damage_type": "bullet", "amount": 60 },
+    "range": 20,
+    "damage": { "damage_type": "bullet", "amount": 100 },
     "recoil": 2500,
     "effects": [ "COOKOFF", "SHOT", "NEVER_MISFIRES" ]
   },
@@ -152,8 +152,8 @@
     "price_postapoc": 4000,
     "flags": [ "IRREPLACEABLE_CONSUMABLE" ],
     "//": "Balanced as FMJ",
-    "damage": { "damage_type": "bullet", "amount": 48, "armor_penetration": 21 },
-    "relative": { "range": 12 },
+    "damage": { "damage_type": "bullet", "amount": 84, "armor_penetration": 21 },
+    "relative": { "range": 20 },
     "proportional": { "dispersion": 1.3 },
     "delete": { "effects": [ "SHOT" ] }
   }
diff --git a/data/json/items/ammo/410shot.json b/data/json/items/ammo/410shot.json
index ffb7db607245..20c86dcf3e8c 100644
--- a/data/json/items/ammo/410shot.json
+++ b/data/json/items/ammo/410shot.json
@@ -16,8 +16,8 @@
     "stack_size": 20,
     "ammo_type": "410shot",
     "casing": "410shot_hull",
-    "range": 12,
-    "damage": { "damage_type": "bullet", "amount": 30 },
+    "range": 20,
+    "damage": { "damage_type": "bullet", "amount": 53 },
     "recoil": 1350,
     "loudness": 90,
     "effects": [ "COOKOFF", "SHOT" ]
diff --git a/data/json/items/ammo/flintlock.json b/data/json/items/ammo/flintlock.json
index c51ab370e4ad..f68c9b72e099 100644
--- a/data/json/items/ammo/flintlock.json
+++ b/data/json/items/ammo/flintlock.json
@@ -14,7 +14,7 @@
     "count": 30,
     "stack_size": 10,
     "ammo_type": "flintlock",
-    "range": 6,
+    "range": 12,
     "//": "Balanced as FMJ",
     "damage": { "damage_type": "bullet", "amount": 50, "armor_penetration": 22 },
     "dispersion": 90,
@@ -37,7 +37,7 @@
     "count": 30,
     "stack_size": 10,
     "ammo_type": "flintlock",
-    "range": 4,
+    "range": 8,
     "damage": { "damage_type": "bullet", "amount": 63 },
     "dispersion": 20,
     "recoil": 1500,
diff --git a/data/json/items/ammo/shot.json b/data/json/items/ammo/shot.json
index 800c786f19b7..fe30e82e7b9d 100644
--- a/data/json/items/ammo/shot.json
+++ b/data/json/items/ammo/shot.json
@@ -61,7 +61,7 @@
     "ammo_type": "shot",
     "casing": "shot_hull",
     "range": 20,
-    "damage": { "damage_type": "bullet", "amount": 100, "armor_multiplier": 2.0 },
+    "damage": { "damage_type": "bullet", "amount": 80, "armor_multiplier": 2.0 },
     "recoil": 2500,
     "loudness": 160,
     "effects": [ "COOKOFF", "SHOT" ]
@@ -96,10 +96,10 @@
     "price": 100,
     "price_postapoc": 400,
     "range": 0,
-    "damage": { "damage_type": "bullet", "amount": 100, "armor_multiplier": 3.0 },
+    "damage": { "damage_type": "bullet", "amount": 50, "armor_multiplier": 3.0 },
     "dispersion": 1000,
     "loudness": 80,
-    "shape": [ "cone", { "half_angle": 15, "length": 15 } ],
+    "shape": [ "cone", { "half_angle": 15, "length": 8 } ],
     "extend": { "effects": [ "NOGIB" ] }
   },
   {
@@ -114,7 +114,7 @@
     "damage": { "damage_type": "heat", "amount": 30 },
     "proportional": { "recoil": 0.6, "loudness": 0.8, "dispersion": 1.2 },
     "range": 0,
-    "shape": [ "cone", { "half_angle": 15, "length": 15 } ],
+    "shape": [ "cone", { "half_angle": 15, "length": 8 } ],
     "extend": { "effects": [ "INCENDIARY", "STREAM", "NOGIB" ] }
   },
   {
@@ -128,7 +128,7 @@
     "flags": [ "IRREPLACEABLE_CONSUMABLE" ],
     "count": 10,
     "//": "Balanced as standard AP.",
-    "relative": { "damage": { "damage_type": "bullet", "amount": -30, "armor_penetration": 30, "armor_multiplier": -1.0 } }
+    "relative": { "damage": { "damage_type": "bullet", "amount": -20, "armor_penetration": 30, "armor_multiplier": -1.0 } }
   },
   {
     "id": "shot_he",
@@ -174,7 +174,7 @@
     "flags": [ "IRREPLACEABLE_CONSUMABLE" ],
     "dispersion": 80,
     "//": "Balanced as FMJ",
-    "relative": { "range": 12, "damage": { "damage_type": "bullet", "amount": -15, "armor_penetration": 18, "armor_multiplier": -1.0 } },
+    "relative": { "range": 12, "damage": { "damage_type": "bullet", "amount": -15, "armor_penetration": 18, "armor_multiplier": -0.5 } },
     "proportional": { "recoil": 1.4 },
     "delete": { "effects": [ "SHOT" ] }
   }
diff --git a/data/json/items/ammo/shotpaper.json b/data/json/items/ammo/shotpaper.json
index 533c9e0ae9ff..c9d1a2ed5889 100644
--- a/data/json/items/ammo/shotpaper.json
+++ b/data/json/items/ammo/shotpaper.json
@@ -5,7 +5,7 @@
     "type": "AMMO",
     "name": { "str": "birdshot paper cartridge" },
     "description": "A paper cartridge containing a premeasured amount of black powder and an equal volume of birdshot.  Used mostly for hunting small game or fowl.",
-    "damage": { "damage_type": "bullet", "amount": 10 },
+    "damage": { "damage_type": "bullet", "amount": 40 },
     "proportional": { "recoil": 0.6, "loudness": 0.8 },
     "extend": { "effects": [ "NOGIB" ] }
   },