Have the Dober dotz (aka the Leupold LR duplex reticle) fallen out of favor?
Seems a simple set and forget would be a fixed 6 Power LR duplex reticle. Easy out to 400.
Or go up in quality and find a S&B 6x42 with P3 mildot reticle. The S&B PMII 10x42 is an almost bombproof setup too.
I still like them, and still have a 6x36 with Dots. Ditto a 2-7x33. KISS.