Remember that it will also depend on what zoom you are at as to what ranges the holdovers will be.
Strelok tells me that mine line up almost perfectly for 300, 400, 450, 500yds at 15x zoom. Load is 168gr SMK's at 2700fps.
It will only give you an idea though until you test them at the various ranges.
One thing to remember is that in theory 7yds at 600 will give you more error than 7yds at 300, due to the trajectory. The projectile will drop a lot more in that 7yds at 600yds. So if possible play with Strelok, and if it's a choice between a small error at the closer holdovers or at the longer holdovers, go for the closer ones. Then go test them at the different ranges.
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