The shock initiation test was made in order to improve the security of explosive in weapon and ammunition system.The degree of response was determined when the charge density of passive hexogen is 92%

85% or 82% of theoretical maximum density.The influence on response of explosives in different charging density under shock initiation was discussed.The test results show that

from 92% to 82% of theoretical maximum density

the response of explosion is weakened and the output energy is reduced.Therefore

reducing density is beneficial to reduction of the response of explosive under shock initiation.