According to Ukrainian sources, Russia produced 420 thousand shells in the first two months in the year.

The 2024 production target of 125mm ammos for tanks by the “State Scientific Research Institute of Machine Building Bakhirev” located in Dzerzhinsk (Nizhny Novgorod Oblast), the main Russian plant for shell production, is 270 thousand.

In February, Russian shell production grew by 11% month on month, and it’s reported that the increase was driven by tank ammunition, mainly due to increases for 115mm ammos, for T-62s, and 100mm ammos, mainly for MT-12s.

Haven’t datas for the other calibers you mentioned. But e.g. Russia is importing mortar rounds from both North Korea and Iran, beside from their own production.