Got a short hunt in on tabors field, I was hunting in disq , sensitivity 2:30 15 wot coil got a really nice clear smooth high tone and it turned out to be a big copper slug , some time later I got the lead slug and that also made a high tone but had a low dip coming into it i figured it for can slaw but it was a 12gauge slug , I also was hunting in pinpont, and could tell most Iron by the hickup it makes I tried the copper slug in pinpont and it made a smoth round sound , hope to get out again somtime, but the hunters rule the weekend, as deer and turky and duck in on I try to stay out of thear way