The phrase "achieving one of the" is correct and usable in written English.
It can be used when discussing accomplishments or milestones that are part of a larger set or category.
Example: "The team is proud of achieving one of the highest sales figures in the company's history."
Alternatives: "reaching one of the" or "attaining one of the".
The result was that, as they entered 1953, the St . LouisCORE group, operating entirely out of public view, was on the way to achieving one of the most innovative and least publicized victories in the long struggle against racial segregation in America.
Mayor Bill de Blasio had just announced police commissioner Bill Bratton's resignation as we walked through the park, quickly achieving one of the occupying group's three ambitious goals when they appeared on Monday.
THREE years after the state announced a program to increase racial diversity in Connecticut schools, there has been little progress in achieving one of the key goals -- hiring more minority teachers.
Kumar Sangakkara was "overwhelmed" after achieving one of the few feats to have eluded him in one of the great modern careers by hitting a Test century at Lord's.
O'Neill was cautious in his appraisal of Northern Ireland's chances of achieving one of the aims laid out in the glossy IFA document - to qualify for a major tournament for the first time since the 1986 World Cup finals.
Bike shares elsewhere have proved only modestly helpful in achieving one of the long goals of L.A. planners — reducing car use.
This would put it on course to achieve one of the key aims of the 2010 Aichi biodiversity targets.
WebBank, a small bank in Utah, achieves one of the highest return-on-equity metrics of any bank by providing an analogous service for marketplace lenders.
And now, with The Paperboy (out now) and Mud on the horizon, McConaughey has cemented his position as having achieved one of the greatest career turnarounds since these guys..
He has also achieved one of the most highly coveted honors in popular culture: a cameo on the FOX Broadcasting Company's The Simpsons (season 28, episode 19, "The Caper Chase").
As a result, Kentucky achieved one of the biggest reductions in uninsured residents in the nation.
