It all depends on your definition of the end of feudalism. If you are basing the end of Feudalism solely on Tsar Aleksander II's Крестьянская реформа 1861 год (Emancipation reform of 1861), then yes feudalism ended in 1861 (except in Georgia where serfs were not emancipated until 1864). However, in reality the fall of feudalism in Russia is far more complicated than that.

Upon the emancipation of the serfs, and the legal demise of serfdom, former serfs did not get to enjoy freedom as one would imagine. With the fall of serfdom came the rise of debt slavery, former serfs were expected to pay exorbitant amounts of rent to their bourgeois landlords. Their inability to pay resulted in many former serfs entering into debt-bondage – a condition not unlike that of serfdom. In addition to payments to their landlords, former serfs were also expected to pay a rather large “Redemption Fee”, and were forced to do so as late as 1906 (Teodor Shanin, The Awkward Class: Political Sociology of Peasantry in a Developing Society: Russia 1910-1925).

Another approach to determining the “end of feudalism” would be determining the end of the feudal mode of production as per Marxist theory. Until the revolutions of 1917, the Russian Empire continued to exhibit the characteristics of a feudal society. The state was ruled by an aristocracy, and social mobility was virtually non-existent within the Empire – especially for the peasantry (Karl Marx, Capital. Shanin, The Awkward Class.). These traits were not eliminated until the implementation of reforms by both the Provisional Government (March-October 1917), and the Bolshevik party. The Bolshevik reforms were instrumental in toppling the aristocratic system, whilst redistributing land owned by former aristocrats to the peasantry.