I had the RZ600 in a 3.5-10 on my .338. It gave reliable hits out to 600 yards with the 225 Accubond (BC = .550) at ~2800 fps. I used it on full power for long range shooting. Honestly- just my opinion here- I think it's nuts to plan on dialing your scope to 8.3x or whatever in the field, in the heat of the moment. If you can't use a reticle at full power, it's the wrong reticle for the cartridge. IMHO. Now with that said, I found the RZ and Leup's B&C to work fine across a surprisingly broad range of cartridges. At full power I mean.
I did find the RZ to be too busy for my tastes in the woods. Again, IMHO.
