My PA ACSS 1-8 does the best with 55 or 62 gr.
It's way off with with 5.56 77 gr.

I use Strelok+ that's pretty handy for seeing what the drops are and has a slider for 1-8 power that adjusts the reticle and ranges.
According to Strelok it's pretty close to the the other two when using 7 power.

So in practice you would range at full power and adjust to 7 for the correct drop for A zone hits.
I keep it simple and zeroed it for 62gr Mk318, 55 gr is close enough to not worry about.
Since 55 and 62 is what I shoot with this rifle it works out.

But for anything else I would rather have a tree type reticle for holdovers.