Don in Virginia
When you're serious about gold hunting with metal detectors, you soon come to realize that all metal detector manufacturers have found that standard metal detectors cannot do well searching for gold nuggets. If you do not have a metal detector designed expressly for hunting gold nuggets and gold veins you will probably not be successful and definitely be disappointed in the results of your hunt.
Relic metal detectors are required to search for relics of all sizes and shapes. Many relics are not complete and present unique detecting requirements to recover relics and artifacts as small as a minie ball only a few inches in the ground to a large cannonball 5 to 6 feet in the ground. The recommended relic must have excellent audio response signal able to indicate shallow and deep targets. Automatic ground balance is necessary. The metal detector must be able to accept both large and small search coils depending on the ground conditions and terrain.