Pc Milburn was badly injured in the failed raid
A woman police officer injured in a raid on a travel agents which led to the death of her colleague fought back tears as she described being shot.
Teresa Milburn said she felt "immense pain" after being shot at close range in Bradford on 18 November, 2005.
The officer said the force of the blast "spun her round".
She was giving evidence at the trial at Newcastle Crown Court of five men accused of involvement in the murder of her colleague Pc Sharon Beshenivsky.
Yusuf Abdillh Jamma, 20, Raza Ul-Haq Aslam, 25, Faisal Razzaq, 25, and his brother Hassan, 26, all deny murder.
Muzzaker Imtiaz Shah, 25, earlier admitted murdering Pc Sharon Beshenivsky, who was killed during the raid.
Shah alone is charged with the attempted murder of Pc Milburn. He denies the charge.
Pc Sharon Beshenivsky was shot while on duty in Bradford last year
Shah, of no fixed address, has pleaded guilty to robbery and three firearms charges in relation to the incident.
Mr Jamma is from Whitmore Road, Small Heath, Birmingham. Mr Aslam is from St Pancras Way, Kentish Town, north London.
Faisal Razzaq and his brother Hassan are both from Sebert Road, Forest Gate, east London.
Pc Milburn told the court: "I was lying on the floor. I was coughing up blood.
"I could feel blood running down my nose and blood over my face, and I was gasping for breath."
Pc Milburn, 37, of Birstall, Batley, said she was "a stride" behind Pc Beshenivsky as they walked from their patrol car to the Universal Express travel agents.
She said she heard a noise which seemed to be coming from the travel agents.
She said: "I was stood slightly behind Sharon. Sharon was covering the left side.
"I caught a glimpse of him, then I heard, I heard a bang.
"Sharon fell to the ground and I got a view of an Asian male.
"He was stood directly opposite Sharon.
"I saw in his hand he had a gun. It was a black, smooth gun."
Asked what happened next, Pc Milburn took a tissue to wipe her face and said: "I saw the Asian male move his right hand from right to left. I saw the hole in the end of the gun and I heard a bang."
Pc Milburn was asked in court where the gun was pointed when she heard the bang, she said: "Directly at me."
She said she was experienced at distinguishing between ethnic groups from her work in Bradford.
Asked about the men who confronted her in the doorway of Universal Express she added: "I can clearly distinguish between both males in that doorway.
"One was black and one was Asian."
Asked by prosecuting counsel which one shot her, she replied: "The Asian male."
Under cross-examination she was asked if it was possible she had made a mistake in identifying the gunman she said: "I have made no mistake whatsoever."
When she was asked if she was sure, she replied: "I am quite positive."