I assume it's caused on this side so reporting it here first. Tested with just those two mods (and obviously space age + dependencies).
EV:Refining adds an alternative grenade recipe to the Military 2 research. I cast bullets appears to removes this recipe from the entire tech tree. It's still present but even if set on assemblers before this mod is added (the bug still occurs on new games) it will not work as the game thinks the recipe isn't researched.

Looked at the code a bit and while I know dick about coding in general, it it possible that the files for casting piercing and uranium ammo entirely overwrite the effects of military 2 and uranium ammo techs? It kinds looks like it to me, which would mean more incompatibilities with any mod that simply add recipes to these techs which get overwritten.

Good catch! Yes this mod entirely overwrites military 2 simply to add the casting piercing rounds recipe in recipes/vanilla/casting-piercing-rounds-magazine.lua:16

I will try to fix this soon, but I am also working on integrating the mod More Ammo into this mod as well, so either I will get it done soon enough that I will release it with the More Ammo support or I will just create a quick hotfix release.

well that was a fast answer. I disabled this mod for now since my black science setup would be annoying to redo but looking forward to the fix

I should have a patch ready! Decided that I would just fix it and do a big release later.

The patch should work, but it has very little testing, so please let me know if you find another bug!

have yet to find any bugs, thanks!