Can sum one tell me houw to macke a inpact hed (inpact detonator). I what I need help with the part that sinds the spark the detanater in other words. To set off the explosive (black powder). i was thinking of useing one of those rocket launcher the part that ignites the busters thacking it apart and rearge it so the butens on the tip of the projectile so win it hits something but if u have any ideas or sugestens it would help. iv never made a morter type explosive.

well when i made explosive arrowtips which someof them were faulty i took a flint wheel one of the ones where you press the button to spark and rigged that to the end
or you could take the electric sppark part of a lighter and put itin the end and make the wires less than 1/4 an inch a part so that it jumps a spark to the black powder
that is if the impact will be on that spot for sure
and hard enough but it wouldnt take much
just like lightig an electric lighter

for an exlpoding arrow id use a .22 shot shel primer