Gun volume & weight audit for blackpowder firearms(.36 & .44 paper + …

…flintlock) (#39188)

* Audit Colt M1861 Navy
* Audit Colt M1860 Army
* Audit flintlock musket
* Audit flintlock carbine
* Audit flintlock rifle
* Audit doublebarrel flintlock
* Audit flintlock pistol
* Re-add price_postapoc

data/json/items/gun/36paper.json

@@ -6,8 +6,8 @@
     "type": "GUN",
     "name": { "str": "Colt M1861 Navy", "str_pl": "Colt M1861 Navy" },
     "description": "The Colt Model 1861 Navy cap & ball .36-caliber revolver was a six-shot, single-action percussion weapon produced by Colt's Manufacturing Company from 1861 until 1873.",
-    "weight": "1190 g",
-    "volume": "750 ml",
+    "weight": "1184 g",
+    "volume": "540 ml",
     "price": 30000,
     "price_postapoc": 3000,
     "to_hit": -1,

data/json/items/gun/44paper.json

@@ -6,8 +6,8 @@
     "type": "GUN",
     "name": { "str": "Colt M1860 Army", "str_pl": "Colt M1860 Army" },
     "description": "The Colt Army Model 1860 is a cap & ball .44-caliber revolver.  It was used during the American Civil War, and made by Colt's Manufacturing Company.",
-    "weight": "1200 g",
-    "volume": "750 ml",
+    "weight": "1188 g",
+    "volume": "486 ml",
     "price": 43000,
     "price_postapoc": 3000,
     "to_hit": -1,
@@ -17,7 +17,7 @@
     "dispersion": 400,
     "durability": 7,
     "blackpowder_tolerance": 96,
-    "clip_size": 5
+    "clip_size": 6
   },
   {
     "id": "lemat_revolver",

data/json/items/gun/flintlock.json

@@ -16,7 +16,9 @@
       [ "stock mount", 1 ],
       [ "underbarrel mount", 1 ]
     ],
-    "relative": { "weight": -500, "volume": -4, "range": -2, "ranged_damage": -4 },
+    "volume": "2250 ml",
+    "weight": "3600 g",
+    "relative": { "range": -2, "ranged_damage": -4 },
     "proportional": { "bashing": 0.6, "dispersion": 1.35, "reload": 0.6 }
   },
   {
@@ -27,8 +29,8 @@
     "description": "This is a compact muzzle-loading rifle combining a pair of rudimentary flintlock actions and two barrels.  Whereas an antique multiple-barrel flintlock is an intricate work of gunsmithing, this weapon is simpler yet still serviceable.",
     "clip_size": 2,
     "price_postapoc": 2750,
-    "relative": { "weight": 400, "range": -1, "ranged_damage": -2 },
-    "proportional": { "dispersion": 1.3 },
+    "relative": { "range": -1, "ranged_damage": -2 },
+    "proportional": { "dispersion": 1.3, "weight": 1.25, "volume": 1.25 },
     "extend": { "flags": [ "RELOAD_ONE" ] }
   },
   {
@@ -38,8 +40,8 @@
     "reload_noise_volume": 10,
     "name": { "str": "flintlock pistol" },
     "description": "A beautifully decorated flintlock pistol.  If using this doesn't make you feel a pirate, nothing will.",
-    "weight": "753 g",
-    "volume": "750 ml",
+    "weight": "1 kg",
+    "volume": "390 ml",
     "price": 35000,
     "price_postapoc": 1750,
     "to_hit": -1,
@@ -73,7 +75,7 @@
     "reload_noise_volume": 10,
     "name": { "str": "flintlock musket" },
     "description": "For once, something *good* came back from the dead.  This ancient design lacks the fire-rate of modern weapons, but packs as much punch as the best of 'em and rewards the skilled shooter with easily-crafted ammunition.",
-    "weight": "1950 g",
+    "weight": "4900 g",
     "volume": "2500 ml",
     "price": 41000,
     "price_postapoc": 2250,
@@ -108,7 +110,9 @@
     "type": "GUN",
     "name": "flintlock rifle",
     "description": "Also called a Pennsylvania rifle, this long barreled rifled flintlock gun has signficantly increased accuracy at the cost of taking even longer to reload.",
-    "relative": { "weight": 500, "range": 2 },
+    "weight": "3700 g",
+    "volume": "1700 ml",
+    "relative": { "range": 2 },
     "proportional": { "dispersion": 0.5, "reload": 2.0 }
   }
 ]