Hmmm, Half right.
'Manual of Land Warfare, Part Two, Infantry Training, Volume 4, Pamplet No. 2, The Self-loading Pistol 9 mm L9A1'
Chapter 3 Paragraph 304 - '... acceptable results are achieved by aiming centrally at ranges up to 25 m. At ranges between 25 m and 50 m, the point of aim should be the top of the target.'