  We continue the work hep-th/0411075 considering here the case of degenerate
masses. A nonabelian vortex arises in r-vacua upon the breaking by a
superpotential for the adjoint field. We find the BPS tension in the strong
coupling regime computing the dual-quark condensate. Then we find that it is
equal to a simple quantity in the chiral ring of the theory and so we
conjecture the validity of our result out of the strong coupling regime. Our
result gives an interesting hint about the duality r <--> N_f-r, seeing it as
the exchange first <--> second sheet of N=1 Riemann surface.
