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

[ghost]

Summary

SUMMARY: Content "Realistic gun volumes & weights for blackpowder firearms"

Purpose of change

Helps #37374.

Describe the solution

Adjustment of volume based on ImageJ calculations.

Describe alternatives you've considered

Tonkatsu doing it.

Testing

Loading ingame.

Additional context

Obviously, the GG versions of these will be affected.

Colt M1861 Navy(Uberti reproduction), OAL 13" and weight 2.61lb: https://www.ubertireplicas.com/product/1861-navy/
Width obtained from vertical line on cylinder: https://imgur.com/a/7QGzSaI
Surface area: https://imgur.com/a/YeWwzT2

Colt 1860 Army(Uberti reprod), OAL 13.78", weight 2.62lb, and six shots(🤔): http://www.ubertireplicas.com/product/1860-army/
Width from cylinder: https://imgur.com/a/TPv3Zjd
Surface area: https://imgur.com/a/ZtkgebP

Flintlock musket(using reproduction Short Land Pattern Brown Bess since that was cited in #37220), OAL 146.5cm and weight 4100g: https://www.davide-pedersoli.com/scheda-prodotto.asp/l_en/idpr_67/rifles-brown-bess-brown-bess.html
SA in sq^cm: https://imgur.com/a/fC4Vioc
Rough width in inches obtained by line across stock using the expanded view & scaling to the barrel length: https://imgur.com/a/9AxHWJf
(Since this is a generalized musket and the volume came out to 2527ml, no need to alter the volume)

Flintlock carbine(reproduction of Cavalry Carbine variant of Brown Bess), OAL 120cm & weight 3,600g: https://www.davide-pedersoli.com/scheda-prodotto.asp/l_en/idpr_68/rifles-brown-bess-brown-bess-carbine.html
SA: https://imgur.com/a/Bx9Omee
Width from BB musket re-used. Rounded since it's generalized.

DB flintlock: Since there aren't concrete examples of this to audit, measure the barrel width(https://imgur.com/a/jXu6BhU) and multiply weight & volume by the ratio of flintlock musket's width + another barrel over the musket width(~1.25x).

Flintlock rifle(reprod. Kentucky Flintlock), OAL 127.5cm & weight 3700g: https://www.davide-pedersoli.com/scheda-prodotto.asp/l_en/idpr_91/rifles-kentucky-kentucky-flintlock-model.html
SA: https://imgur.com/a/5jNlyMK
Measuring forend cap: https://imgur.com/a/Xn2hlIx
Width from expanded view after scaling to OAL-forend cap: https://imgur.com/a/gXmcEwu

Flintlock pistol(using reprod Queen Anne's pistol), OAL 33cm and weight 1kg: https://www.davide-pedersoli.com/scheda-prodotto.asp/l_en/idpr_52/pistols-queen-anne-queen-anne.html
SA: https://imgur.com/a/Ap6UfwP
Width obtained by vertical line on barrel near the breach: https://imgur.com/a/PKTUzNA

LeMat revolver was already done by Tonkatsu.