The last time Great Britain won a men's world bobsleigh medal was when Tony Nash and Robin Dixon claimed gold at the same track, two years after they'd won the 1964 Olympic title in Innsbruck.
And this was arguably the best British men's performance at this level since Sean Olsson's four-man crew won bronze at the 1998 Winter Olympics in Nagano.
Jackson and crew Stuart Benson, Bruce Tasker and Joel Fearon underlined their intent by posting the quickest second run time to sit eighth coming into the final two runs.
And they edged further up the standings to sit joint fourth, just one hundredth of a second off a medal, ahead of their final run.
Their accumulative time across four runs, 4:21.33, ranked them just 0.66 seconds behind eventual gold medallist, Germany's Maximilian Arndt, and just 0.07 seconds off a medal, as Russia and the United States completed the podium.
Despite initial disappointment at being so close, British Bobsleigh can certainly look ahead with brimming confidence, with next week marking exactly one year to go until the 2014 Winter Olympics in Sochi.
The arrival of former Swiss team boss Dominik Scherrer as new technical coach is turning the dream of a podium finish next year into a serious reality, while there is more strength in depth in the crew supporting driver Jackson than ever before.
Royal Marine Jackson has certainly flourished since the 2010 Winter Olympics in Vancouver, in which he crashed during the two-man event and finished 17th in the four man.
He underlined his improvement at last year's Europa Cup, when he collected three medals, including a gold, on the same track in St Moritz, and is currently enjoying his best World Cup campaign.
- Sports & Recreation