I can use some help on this one. I visited Topsail Beach this week. Detecting the dry sand my V was going nuts - constant beeps. The culprits were numerous chips of what looks like old pieces of a shipwreck. They were from 1/4 inch long to quarter size but only 1/32 or so thick - very thin. Here's the perplexing thing that I hope someone can answer. I could not disc these pieces out. Another detectorist using a Garrett 250 had no response to these pieces EVEN IN ALL METAL. He used his Garrett pinpointer but no response. My tinytec pinpointer had no response. Yet my V responded to them as if they were quarters. I brought a piece home to examine and air tested it. The piece will not disc out. I'm baffled at this. I have a piece of rusty iron that disc's out just as it should so I'm assuming the disc is working. All coins and rings disc out as should. Any ideas?
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