Guanidinium and triaminoguanidinium azotetrazolate (GUAZ, TAGAZ) were used as high-nitrogen compounds for the preparation of new propellants bound with nitrocellulose and plasticized with dibutyl phthalate and 3methyl-3-nitroxymethyloxetane. The new propellant compositions were tested by using a differential thermal analy-sis-thermogravimetric technique, friction sensitivity and impact were ascertained and pyrostatic tests were conducted. Regardless of the amount of TAGAZ and plasticizer type, the propellants exhibit similar maximum pressure of the gases which allow for the replacement of NC in propellants by TAGAZ.