in the gold space some use the rule of thumb that for a decent drill result, the product of the length (in meters) X the intercept (in grams) exceeds 100 (ie. 10m of 10g/t or 25m of 4 g/t).
7.75% U308 is equivalent to 189 g/t of gold (at U308 $50/pound and Au $1350/oz)
189g/t X 63.5m= 12,000!
not too shabby...