Audit guns in .30-06 for width, volume, and longest_side

[feinorgh]

Summary

SUMMARY: Content "Audit guns in the .30-06 calibre for volume, weight, and longest_side"

Purpose of change

Contribute to completion of #41691 and #37374

Describe the solution

By using the method in #37374, go through the guns and calculate reasonable values.

Describe alternatives you've considered

Lie back, have a drink, and use 10 cm long rifles for fun and profit.

Testing

Test suite passes, and each updated weapon should spawn in the game with reasonable values.

Additional context

Browning BLR

This is based on the 22 inch barrel version of the Browning BLR Lightweight.

Source: https://docs.google.com/spreadsheets/d/10TeuTTjwusbWB9SaH-nq03bMWDyILylU9Btvtu3uTDM/edit#gid=93328453&range=A32

M1 Garand

Width calculated from a top view, with the profile area divided by the length, which makes the average width across the length 41.9 mm.

https://docs.google.com/spreadsheets/d/10TeuTTjwusbWB9SaH-nq03bMWDyILylU9Btvtu3uTDM/edit#gid=93328453&range=A85

M1903 Springfield

Width estimated from pictures, although no reliable source was found.

https://docs.google.com/spreadsheets/d/10TeuTTjwusbWB9SaH-nq03bMWDyILylU9Btvtu3uTDM/edit#gid=93328453&range=A90

Browning Automatic Rifle

This is assumed to be the M1918A2 (based on the weight of the weapon), developed for World War II service in 1938. Estimated average width from drawings is 2 inches. No definite source of width found.

https://docs.google.com/spreadsheets/d/10TeuTTjwusbWB9SaH-nq03bMWDyILylU9Btvtu3uTDM/edit#gid=93328453&range=A31

Remington 700 .30-06

This is based on the Remington 700 SPS in .30-06. Width is based on an average width of the stock and handguard of 2.095 inches. Note that the Remington 700 in .270 have different values, but I think the different stock and handguards make a huge difference.

https://docs.google.com/spreadsheets/d/10TeuTTjwusbWB9SaH-nq03bMWDyILylU9Btvtu3uTDM/edit#gid=93328453&range=A150