Some ammo counts are too low, hope there is a High-capacity magazine version of the high cost recipe

Good idea, I see what I can do.

With Space Exploration

The icon is very cool, looking forward to the new magazine installation,Thank you so much.

New Update out now, have fun :D

Почему-то нету в рецептах магазинов большой емкости и исследования проведены! Они есть только в редакторе! Хотя деталь для производства магазина большой емкости в рецептах есть, а самих магазинов нет!

I would prefer the English language, because I don't speak Russian (sorry)
But there might be a bug, I'll see what I can do.
In the future, please report bugs on GitHub.

Is it possible to make extended mag versions of the vanilla ammo?

It should do that by default, except if the vanilla ammo is replaced or renamed by an other mod

Aha I am playing with IR3, and that seems to change ammo names.