Magnetic properties of the Sm-Fe-N magnets produced by different methods: HDDR, mechanical alloying (MA) and mechanical milling (MM) were investigated. The Mossbauer spectroscopy and X-ray diffraction were used to quantitative analysis of the phase structure of the magnets. Moreover, it was stated that the dependence of the coercive field of minor hysteresis loops on the applied field for Sm-Fe-N magnets is characteristic for the materials with nucleation of the reversal domains mechanism.