No, it's not.

Fallout 1/2 have been prone to save corruption when saving in combat, though. I think it's been fixed in latest sfall releases, but if you want to be extra safe still, avoid doing that.

Does FO2Tweaks translate these changes when they occur, or just apply one set of ammo DT Mod & Dmg Mod, EcCo or no EcCo? The second. (Well, now, with the script I just posted.) "Translation" of the changes is what got you (AC Mod, DT Mod, Dmg Mod) = 10 mm JHP (0,0,1/1); 10 mm AP (0,4,26/25); .44 Ma...

I went another way: hardcoded DR values into script, leaving an option to change them in the ini.
Try the attached script, drop it into data/scripts. That should provide good values even with "damage_mod_ammo_dr" section empty.

If I understand correctly, those who want to turn off your own damage formula in favor of EcCo's should also comment out every line in the section "; Ammo added by mods  ; EcCo"? No, the entire component can be turned off in the main section, by setting damage_mod = 0. The lower section is just fin...

"DR mod" was swapped for "DT mod" by YAAM shipped with EcCo. You can search data/text/english/game/proto.msg for this string and replace it manually. The section with ammo doesn't have all of them, as they are mostly good by default. But with EcCo, they aren't anymore. So I'll probably have to add a...

Right, so apparently EcCo bundles ammo protos with it and that overrides vanilla. Captura de pantalla de 2019-12-22 22-37-27.png Sfall has nothing to do with it. You'll need to edit fo2tweaks.ini to and uncomment optional ammo settings, like here: https://github.com/BGforgeNet/FO2tweaks/blob/70dc4af...

Nope, still not correct. DR mod should be same as vanilla: https://fallout.fandom.com/wiki/10mm_(Fallout)
And there shouldn't be a DT mod in the first place... Please share the data dir.

No reason to PM, really, I don't think there's anything private in the ini files? Also, I asked for "data" dir contents, not just inis. Anyway, I think I know what the problem is. It appears that I was wrong about the damage mod setting. YAAM changes ammo properties. Try setting DamageFormula in ddr...

0,4 is 104/100=26/25, which means that mod is working correctly. However, the actual ammo values are not right. They are supposed to be 0,35 (for JHP). Have you tinkered with them, by chance? I can take a look at this, but I'll need your entire "data" directory zipped, as well as all ini files (see ...

FO2tweaks isn't restricted to any single scope. But this particular issue just doesn't bother me enough to care.
You can make the change yourself, though. It should be fairly simple.