Great to hear you follow up report.
Lead shot is an indicator that you are able to hear a target that "couldabeen" gold.
Apart from their widespread scattering, lead shot has a nasty habit, because of their weight, in sinking deep after many years of alternate softening, hardening, cracking of soils in response to rain and other weather events. Drift of overlying soils adding to depth of coverage also adds to that.
Gold performs similarly in sinking through soils and because of eons of time is most often found at the deepest boundary between the soil and harder subsoil or rock horizon below.
Whilst I have found shotgun pellets almost at that deepest horizon, I am not sure if I can recall any shot LOWER than gold in a specific patch with a consistent soil profile. I would be interested in hearing other's thoughts on that and why that could ever be so.
Maybe the gold is sitting just beyond GM detection at a level below that of the shot you are picking up. I would encourage you to persevere in areas that may be even a bit shallower in soil profile to what you have been detecting.
In determining the depth of a soil profile, you just need to observe how deep it is before the soil becomes compacted or indeed rocky. For a GM That should be fairly easy as you do not need to be digging deep holes maybe 6 inches or even less to establish that. The exposed rocky slopes of reefy quartzy hills could also be another area to search with the GM as tiny bits of gold have no deeper place to escape to.
Above all stay away from "deep" ground unless working heaps where you should concentrate of heaps showing bits of rocky material brought up from the very bottoms of holes.
Hope this might be helpful.
Thanks again for your insight and advice, Hawkear.
During my most recent outing I was detecting the slopes of Humbug Hill - along Lincoln Gully Road. I was picking up lead shot within 20mins, while walking up the slopes. I know people generally don't reveal the location they prospect but, if this helps in other sharing advice their advice then, I think its worth it.
As for the lead shot, it was found close to trees (within 1ft or so) in white looking soil/clay. I think the depth was about 2-3 inches for the leadshot I was finding. There's a few mullock heaps (white, powdery mounds, correct?) as well as some really nice looking material of rough quartz mixed in with various soils - mullock, some yellow clay, etc. From your above comment, Hawkear, that seems like a good place the swing the GM.
I ran the GM on Auto+ but, I had a bit more of a play with the manual sensitivity. With manual 8 in all metal mode actually pretty quiet. Between those two settings, the lead shot targets were a very clear tone, as well a full non-ferrous on the discrimination bar.
I think in Victoria if you are finding Lead shot thats a good sign that the area has not being thoroughly done over.
It helps also, if you can think outside the square eg roadside/track verges, under logs/rocks, watch out for snakes, in the 1980/90's to present, under low bushes.
A number of times in the past in WA, looking at the country/rocks/trees downhill washouts, I have suggested to my wife that she detects in this area, no she is going to do her own thing and finds a patch, in a god for sake-in area, that other operators like myself have not seen its value.
The other thing is Know your Detector, in my early days detecting I detected with an Adelaide Guy called Goldfinger, I think he could find gold with a burnt stick. we had the same make, model of detector same settings, same area but he would find Gold in Vic and me none. I realised I was walking over gold that I did not hear
I suggest you could be walking over gold as well with the time you have spent in the goldfields. Maybe your Coil swing is to fast, not low enough, detector not optimized for the ground you are detecting on, need more sensitive headphones, Not hearing the slight changes in threshold that could represent a signal.
If you do not already have a test piece I suggest you borrow/buy one. I do not know the GM1000 but think it should pick up a .2gm (.1gm?) on the surface, I would try that with your swing and different settings to hear the signal..
Thanks for your response, Peterinsa,
You're probably right. There is every chance I've been walking over gold.
As for the reasons you've suggested, I could be very well swinging too fast. I always try to keep my swings low and slow. So low in fact, that I need to stop bumping the coil, as its sometimes giving me false gold readings on the discrimination bar.
I tend to not use the headphones, as the cord is really inconvenient, and it generally gets tangles up and pulled out of the headphone jack. Additionally, I have enough trouble not tripping over rocks, logs, pits, shafts, etc, that the headphone cord is a trip hazard I can remove. Perhaps the investment of wireless headphones might me on the cards.
I have a bunch of gold I've accumulated over the last 12 months panning, with a couple of tiny specimens I've managed to find in my classifier while panning at Dolly's Creek. Perhaps I do need to source a bigger nugget and take it out to the field, with me.
Cheers,
Pip.