I have to wonder what Vortex was thinking with this. I have both the Viper PST 4-16x50mm FFP and the Viper PST 6-24x50mm FFP. Both have 5 mils per turn on the vertical adjustment and almost the same adjustment range of about 20 mils. So why is the horizontal scale on the front of the turret different, the one to indicate which revolution the turret is on? The windage is different too. The first photo is the 4-16 and the second is the 6-24. These turrets have close to 5 turns from stop to stop. The 4-16 scale makes much more sense to me.