I was reading up on sightron 8-32x56 LRMOA, It says it is indexed for reticle measurements at 24x. But the one i looked at in person had a dot on the power ring at 20x, what does this mean?
It is indexed at 24x as is the dot. Whichever one you were looking at must have been something else. I pretty sure the 6-24 and the 10-50 are also indexed there.