  Six-loop massive scheme renormalization group functions of a d=3-dimensional
cubic model (J.M. Carmona, A. Pelissetto, and E. Vicari, Phys. Rev. B vol. 61,
15136 (2000)) are reconsidered by means of the pseudo-epsilon expansion. The
marginal order parameter components number N_c=2.862(5) as well as critical
exponents of the cubic model are obtained. Our estimate N_c<3 leads in
particular to the conclusion that all ferromagnetic cubic crystals with three
easy axis should undergo a first order phase transition.
