What an interesting test.
We really like it when companies do tests on their machines. Every metal detector tested was with the stock coil. Granted some coils are better equipped for looking for Gold than others please keep that in mind when looking for that perfect Gold detector.
They used two Gold nuggets. 1 5 grain and 1 1.9 gram/29grain The test they did was an air test to give you an idea of how the metal detectors would perform. Please keep in mind that soil conditions can have varying results.
Thank you for watching!