Precious metals have been outstanding performers this year, with gold and silver rallying 39.16% and 42.17% respectively. Naturally, this has been a significant boost for the sector, as Sprott Gold Miners ETF SGDM  doubled, rising 98% year-to-date.Still, there are opportunities within the sector. Although a rising tide lifts all the boats, it does not lift them equally. Many junior firms are yet to stake their biggest discoveries, and with current metal prices, the upside could be considerable.While there a ...