Yes, like Ukraine, they have spent most of their 122mm ammo already.
That said, I know no sources that could offer at least serious estimates for the VSRF's ammo stocks. Thus, sorry, no idea.
Yes, like Ukraine, they have spent most of their 122mm ammo already. Is a co-reason for 'conversion' to 152mm (except for the fact that the 122mm is simply 'too light' for modern-day warfare).
That said, I know no sources that could offer at least serious estimates for the VSRF's ammo stocks. Thus, sorry, no idea.