The phrase "aimed chiefly" is correct and usable in written English.
It can be used to indicate the primary focus or target of an action or intention.
Example: "The campaign was aimed chiefly at raising awareness about climate change."
Alternatives: "primarily targeted" or "focused mainly".
It involves government financial aid aimed chiefly at helping the mass of workers.
His reforms aimed chiefly at stabilizing Senate authority by removing alternative centres of power.
The speech was aimed chiefly at the Labour tribe, hoping to unite those who have been fighting each other so bitterly.
Under pressure from the Tory right in Parliament and the press, Mr. Hague adopted a "core vote strategy," aimed chiefly at enthusing the Conservative base.
Although the inquiry is looking broadly at the industry, many have assumed it is aimed chiefly at Tesco, which has built a commanding lead.
Although they may have "cared about making a profit," the merchants who served this pampered class aimed chiefly "to produce the finest products possible".
This autumn, federal banking regulators issued new rules to tighten lending standards, aiming chiefly at adjustable-rate mortgages.
Ethnic ventures could then be created in different industries – even in knowledge or capital-intensive industries - and could aim chiefly at growth.
Tao wrote that both Zhang Heng and Cai Yong "avoided inflated language, aiming chiefly at simplicity", and adding that their "compositions begin by giving free expression to their fancies but end on a note of quiet, serving admirably to restrain undisciplined and passionate nature".
Their successors indeed all new museum directors must aim, chiefly, to ensure their missions match the needs and tastes of their future beneficiaries.
The muscular prose and spiky jokes are treats too.What is sometimes missing oddly, in a book that aims chiefly to supply the missing context is a sense of fairness and proportion.
