fire, launch, unleash
The police fired a volley of bullets over the heads of the crowd.

volley of

backhand, forehand (in tennis)
left-foot, right-foot (in football/soccer)
great, stunning, superb (esp. BrE)
Williams took the set with a stunning backhand volley down the line.

30-yard, etc.

hit
She hit a forehand volley into the net.

lash (BrE), strike, unleash (all in football/soccer)
Cole lashed home a 20-yard volley.

on the volley (BrE)
Figo met the ball on the volley and scored.