ps chidori from manga sasuke was enough to stalemate a bijju dama same size from rsm avatar. the last sasukes chidori used from his bare hands became powerful to the point were he can shatter meteors scaled to be size of the hokage mountain in order words its on a similar scale to ps chidori from the manga, thats how powerful sasuke has gotten after 2 years. thats an evidence of how much stronger and potent his rikudou chakra became, now picture his ps stregth in that 2 years3 Eyed Madara>Rinnegan Sasuke (With Bijuu) IMO
I don't know why people are saying Adult Sasuke or The Last Sasuke are as strong as Madara.
Madara's Rinnegan Techniques>>>Sasuke's Rinnegan Technqiues.
I admit Sasuke could have mastered his Rinnegan to a point where it exceeds Madara's mastery but the Scale of Madara's Rinnegan techniques make Sasuke look like a Joke. Madara could effortlessly create Create Country Level Chibaku Tensei.
8 years after that, and that strength should have have increased massively. while still being new to his power, he clowned one eyed jj madara up and down with the latter failing to react to amenotejikara then, still was still partly countering dual rinne jj madaras ct. now adults sasukes ps is much stronger than that(judging from the above evidences), so whateva ct madaras uses is effrotelessly shattered, ps chidori from adult sasuke would do some serious damage to madaras hypotheticasl ps, amenotejikara used with ps means sasuke can bliz him from either front or back delivering crushing attacks. he would be faster and his reflexes would be better than his manga self which wont help madaras case.
no form of madara is beating sasuke as an adult, not a chance.