перестрелка

1) General subject: a gun battle, fire-fight, firefight (An exchange of gunfire, as between infantry units (The American Heritage® Dictionary of the English Language: Fourth Edition. 2000)), gunplay, shoot-out, shoot-up, shootup, skirmish, slugging, exchange of shots, gun-fight, gunbattle, exchange of gunfire

2) Sports: shoot off (стендовая стрельба)

3) Military: bickering, exchange of artillery fire, fire duel, gun battle, interchange of fire, interchange of shots, mutual exchange of fire, shoot-in (в помещении), shots interchange, skirmishing, exchange of fire ("mutual" is redundant in "mutual exchange of fire". An exchange is mutual per se.), gunfighting

4) Diplomatic term: engagement, exchange of fire

5) Politics: exchange of gun fire

6) Arms production: fire action, fire fight

7) Security: shootout