Re: Horus scopes ?
I have the following comments.
In the specification page on the scope, adjustment was listed as "1 mil (1 cm at 100 meters) click adjustments". 1 cm at 100 meters is 0.1 mil, not 1 mil.
PBZ was established at 300 yards. The entire point of the Horus reticle is to establish a short-range zero, usually at 100 yards or meters, and then shoot everything using holdovers referenced to the grid below the horizontal arm of the reticle. If, for example, I know that my dope for 600 yards from a 100 yard zero is 4.4 mils, all I have to do is hold down from the main crosshairs 4.4 mils, using the numbers on the reticle. I don't have to figure out the offset for that from the PBZ range, which may be confusing.
On that reticle there are limited if any grid references above the horizontal crosshair, and precision shots inside the PBZ would have to be made holding under that crosshair, without reference to the grid.
If the zero were established at 100 yards or meters, shots at <span style="font-weight: bold">every</span> distance, including inside the zero range, would all be made using holdovers referenced to the grid.
I like the Horus reticle, and used one exclusively for three years and many thousands of rounds. However, I stopped using it when it occurred to me that I could use a standard mildot reticle with 5 mils of marks below the main crosshairs to shoot out to 600 yards, using only holdovers from a 100 yard zero. And it is within that range that most fast shooting is required. Beyond 600 yards, one usually has time to dial elevation.
And if you really need holdoffs for extended distances, a 600 yard zero with a .308 will enable you to use both holdunders and holdovers from 100 yards to about 925 yards.