Thread: Help Offered – Range Contamination

i was part of a crew that striped and replaced the backstops at the navy base at the end of the whangaparaoa peninsula ,we did the 300m, 100m range and also the pistol range ,this was about 10years ago , we must have got 2 1ton bags of lead gravel mix out of that before we could dump the rest of the material in the back stops