Advance Metals’ recent diamond core drilling has bored through a bonanza-grade one-metre intercept grading an eye-watering 4120 grams per tonne (g/t) silver at its flagship Gavilanes project in Mexico. The result came from just 66.7m depth downhole and formed part of a broader 4.6-metre intercept assaying an impressive 945g/t silver, 1.4 per cent zinc and one per cent lead.