150 1oz silver coins 3-4ft deep

Ok with not much to do today I ran some tests

I took 400 - 90% half dollars put them in a cardboard box (They was all rolled up)
Tried 3 machines on them in a air test
1. Simplex would hit them at 21 inches no more
2. Minelab 3030 17 inch coil wide open 21 inches mind you i have not used this machine in 2 to 3 years
3. Whites TM 808 (2 coil machine) 19 inches Would hit my car over 48 inches. I am not real good at setting up the 808 or the 3030 I did put the 3030 in beach mode and wide open sens.

hope this helps


3.
 

Just rent a back hoe detect a grided area then remove a foot or so and keep doing it. I would have found em long ago
 

Rent a Bobcat and strip some sand off the top layers and detect until you find it.
 

Post pics when you find it!:icon_thumright:
 

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