  Co$_3$Sn$_2$S$_2$ has recently emerged as a ferromagnetic Weyl semi-metal.
Theoretical investigation of the spin-split bands predicted half metalicity in
the compound. Here, we report the detection of a spin polarized supercurrent
through a Nb/Co$_3$Sn$_2$S$_2$ point contact where Andreev reflection is seen
to be large indicating a large deviation from half metallicity. In fact,
analysis of the Andreev reflection spectra reveals only 50\% spin polarization
at the Fermi level of Co$_3$Sn$_2$S$_2$. Our theoretical calculations of
electronic Density of States (DOS) reveal a spin depolarizing effect near the
Fermi energy when the role of spin-orbit coupling is included. Inclusion of
spin-orbit coupling also reveals particle-hole asymmetry that explains a large
asymmetry observed in our experimental Andreev reflection spectra.
