You really don't need one specifically for a 25-06. If you are shooting far enough to need to click up your scope, you should be doing your practice time to know how far your bullet is dropping at various ranges. With any standard tactical scope, you can then dial up the appropriate MOA for the distance. With a few range sessions with the ammo you plan on using it's quite simple. I keep a drop chart (with wind drifts) either taped to my stock or tucked in the shell holder on my stock. I have the common ranges memorized, but for an odd distance shot it only takes 3-4 seconds to determine the appropriate MOA to dial in.