Police have closed large sections of the training venue of Australia's Olympic shooting team after an investigation found it was unsafe, projectiles were leaving the range, lead was "raining down" on buildings with people inside, and shooters were illegally using full metal jackets.

Victoria Police's Licensing and Regulation Division conducted the investigation after receiving a number of complaints about safety standards at the Melbourne International Shooting Club in Port Melbourne.

Police have closed large sections of Melbourne International Shooting Club. Credit:Melbourne International Shooting Club (MISC) / Facebook

The venue, which includes 25-metre and 50-metre ranges, hosted shooting events at the 2006 Commonwealth Games and is the training venue for the Australian pistol shooting team ahead of the 2020 Olympic games.

In a finding made public on Friday night, Acting Inspector Andrew Armstrong said the investigation found serious safety concerns and poor management by the committee of the Todd Road complex.