Larry Godfrey and Alison Williamson top-scored as Great Britain's Olympic archery hopefuls were whittled down from 17 to 12 at the conclusion of the first of three selection shoots.
Williamson, seeking to qualify for her sixth Games, topped the seven-strong women's competition with 2,547 points as Emma Downie missed out on a place in selection shoot two.
Williamson edged out Amy Oliver by just two points with Naomi Folkard third. Teenager Beccy Martin, Charlotte Burgess and Nicky Hunt completed the qualifiers.
Godfrey pipped Simon Terry by seven points to top the men's standings on 2,685 with Michael Peart third on 2,616, six points ahead of Alan Wills.
Rob Hallworth and Andrew Randall were the other two shooters to advance as Jon Shales, Sean Evans, Tom Barber and Mark Nesbitt fell by the wayside.
Archery GB performance director Sara Symington said: "It was a very tense, competitive, dramatic weekend, as you'd expect. There were some fantastic performances, some thrilling sub-plots, and for 12 archers the dream lives on."
The successful dozen will reconvene in two weekends' time, when two men and two women will be eliminated. The top three men and the top three women at the three-day final shoot from April 19-21 will then compete at Lord's at this summer's Olympics.