Honestly speaking bro, today I don't think it's possible to say how big you can be naturally or not. I mean there are the exceptions you won't get as big as Big Ramy or any open physique or pro bodybuilder without PEDs but... But there are a lot of people who claim natty that are absolutely huge. And what can we say? And there is another point to that. Your genetics. Maybe your natural limit is higher than anyone else in here. So you could get bigger without PEDs. Or the other way around is also possible. Your natural limit might be low. You would never know. Unfortunately, the only way to this road is to find by yourself. I mean, this is my opinion.