I noticed some minor quirks in the ammo crafting recipes.

1) 12-gauge buckshot shells are crafted in batches of 40 whereas the other types of 12-gauge ammo are crafted in batches of 10. All cost 5 parts, 1 gunpowder, and 3H30M at 100 EXP except for breacher (which requires 10 parts), but buckshot yields 4x as many shells. Bobby Ray's still sells all of them in boxes of 12.

2) .44 subsonic is crafted in batches of 30 whereas the other types of .44 ammo are in batches of 24.

3) The pistol/SMG rounds added from ToG take more resources to craft than the original rounds like 9mm and .44. For example, .380 ACP requires 10 parts, 1 gunpowder, and 7H 30M (at 100 EXP) to craft 30 rounds, whereas 9mm requires only 5 parts, 1 gunpowder, and 5H and .44 requires 8 parts, 1 gunpowder, and 5H. Their higher resource cost also applies to their armor piercing and other variants. It looks like the new ToG pistol/SMG rounds require the same amount of resources as the original rifle rounds like 5.56 and 7.62 NATO. To keep things relatively simple, perhaps .380 ACP, .45 ACP, and 5.7x28mm should have the same crafting recipes as 9mm, .44 Magnum could be the same as the original .44, and .50 AE could remain like the rifle rounds.

3) 7.5x54mm (French) standard ammo can be crafted even though there are no guns that use it. All of the other types that can be crafted from the standard type can also be crafted. I believe it's just the MAC 24/29 LMG that uses it in ToG. (Given the Grand Chien setting, it would seem like there should be more old French weapons around, but maybe the Colonial French troops in Grand Chien back then were armed with the 1911s, Stens, and M1 Garands that we find.)

4) There are some random special ammo types that show up in the recipe list even though their standard variants do not: 20x82mm frag, .300 Blackout subsonic, .32 ACP tracer, and .44 AMP subsonic.