Big new leak of Russian combat deaths, based on death certificates: nearly half-a-million. Adds credence to other estimates.
According to various studies, the ratio of deaths to serious woundings among Russian combatants in this war ranges from 1 : 1.7 to 1 : 2.2.
Applied to this data, that implies between 1.2M and 1.4M men killed and seriously wounded. That's between 1.8% - 2.1% of all Russian men.
A group of hackers published classified data on Russian soldiers killed in the war, from Russia's statistics agency Rosstat. In late August, the total was 450,100 (around 100k per year). It is in line with other independent estimates. There is also a regional breakdown.