Well if you consider EoC Mayan Mughals regular
Just "normal" Mughals with administrative ideas and Hindunasti assimilated have 60% CCR, but their missions give them tons of permanent claims adding 25% CCR, so if the CAP is at 80%, you reach it rather fast with them. By the way a CAP of 80% means 1 MP for each dev point of the province for coring it as a territory.
Also the CAP is for additive multiplier only. Any modifier more than 80% will be lost, but admin efficiency (and absolutism) are applied after these modifiers. So coring cost can be reduced by 94% (80% for additive modifiers, 70% from max admin efficiency)