The sentence is correct and usable in written English.
You can use it when you want to talk about making something more precise or exact. For example: Joe practiced basketball every day to improve his accuracy.
In making his target smaller, he hopes to improve his accuracy.
Josh Freeman's 4,065 passing yards and 27 touchdowns last season represented new franchise records at his position, but he will hope to improve his accuracy now that he has a full year working with head coach Greg Schiano under his belt.
It took dedication in the off-season as Klein worked to improve his accuracy (57.3 percent last season), according to his father, who, deferring to Snyder's tight-lipped approach to running his team, declined to name a program or mentor that helped his son.
He was also criticised in the press by Bill Bowes, a former England team-mate, for forcing one of the England team, Fred Trueman, to bowl at a handkerchief during practice before the match, in an attempt to improve his accuracy.
But if he has improved his accuracy even 10% since then?
On the field, he has improved his accuracy, to the point that he has leapfrogged fellow young throwers like Couch and McNown.
Tebow's tosses still often sail in many directions, although he has improved his accuracy compared with his stay on the Jets.
That improves his accuracy, although he misfired on several pass attempts even against inferior defenses: Detroit's is ranked 30th and Jacksonville's is 29th.
Sanchez has improved his accuracy this season, but only slightly, the football equivalent of a restaurant that turns a bad meal into a barely edible one.
ARMOUR LEADS IN MILWAUKEE: Bo Van Pelt, easing back on his drives, drastically improved his accuracy at Brown Deer Park yesterday, shooting a seven-under 64, to put him one shot behind the leader, Tommy Armour III, in the opening round of the Greater Milwaukee Open.
Quarterback Ryan Tannehill has improves his accuracy, he's reading the field better, and he's getting all his weapons involved.
