The LR Dot reticle was developed around a typical centrefire trajectory, like the .308 Winchester round, which is popular around the world for shooting fairly large game. It also suits some of the faster bullets that might be used for hunting foxes and similar quarry. Many hunters like to use the same magnification for the rifle scope as their binoculars so the LR Dot reticle markings were designed at 8x magnification.
This design also makes it suitable for European shooters who might prefer a metric set of figures and therefore to zero their rifle in for 100 metres on the centre crosshair and use the lower aim points for 200, 300, 400 and 500 metres. A useful tip: at 8× magnification, the thick posts to the right and left of the centre dot would bracket the body length of a Roe deer at 100yds; a popular sized animal to hunt with this type of reticle.