Oscar Pistorius' doctor has told the court the defendant would have difficulty firing a gun as the recoil would have an impact on his balance.
Dr Versfeld said, "If he is stretching out and he's having difficulty balancing, then the recoil would have an effect on him".
Pistorius denies murdering his girlfriend Reeva Steenkamp, saying he mistakenly believed she was an intruder when he shot her through the bathroom door.
Oscar Pistorius' defence will open their case on Friday and the Paralympic and Olympic athlete is expected to testify in the morning.
Oscar Pistorius was "probably not wearing his prosthetic legs" when he fatally shot his girlfriend, a forensic analyst told his trial.
Reporters discuss their views on the evidence while trays of coffee are passed along. At times it feels more like a cinema than a courtroom.