Italy's Niccolo Campriani won gold in the men's 50m rifle three positions in a new Olympic record but Matt Emmons again slipped up at the death.
The United States marksman
famously blew leads in the last two Olympics
to finish outside the medals.
And this time he dropped from second to third with his final shot to hand Korea's Kim Jonghyun silver.
Campriani, 24, scored 1278.5 points having previously smashed the Olympic record in qualifying with 1180.
His combined score was six points ahead of Kim and adds to his silver in the 10m air rifle earlier this week.
Emmons, who developed thyroid cancer in 2010, finally claimed a medal in the three positions event (he won the Olympic 50m prone title in 2004) after agonising finishes in the last two Olympics.
In Athens eight years ago
he fired at the wrong target
while leading and went from first to last, while his gun
went off accidentally
while he was still lining up in Beijing, sending him from first to fourth.
The 31-year-old's agony in Athens was made less painful as it led to him meeting the woman who became his wife.
Czech shooter Katerina Kurkova, who had been commentating on the final as Emmons missed the target, approached him to offer her commiserations and it marked the start of a romance between that culminated in their marriage three years later.