Vigor
30 Achievements
Steam
Target Practice
Try Firing Range in shelter
37.5%
How to unlock the Target Practice achievement in Vigor - Definitive Guide
TheDomSal
TrueAchievements
TrueAchievements
As you're roaming around in the shelter, the firing range is located right in front of it, across the street from main road. Walk in it and fire at will, ammo in the firing range are infinite. 
UntilTammaroYT
See "Sharpshooter."