Estimation of 100p% firing level is very important in reliability design, qualification and evaluation for pyrotechnics. A number of methods which include the up and down method, the Langlie method, the Wu method,the Neyer method and the optimal stochastic approximation method have been developed for a long time. These methods were compared under the normal and logistic sensitivity distribution by using Monte Carlo technique. The appropriate application range for each method was given by considering deviations. The optimal stochastic approximation method is suggested for p=0.5 and the Neyer method is suggested for p=0.99-0.999.