Do you think my black Australorp could actually be a Jersey giant?

I got him at Tractor supply, he was labeled as a black Australorp straight run, he is black that checks out but what's making me question what breed he is, is he's a fair bit larger than my Barred Rock rooster, I can't get a picture of them next to each other because they don't tolerate each other that well, but he's a good 2 in taller than him and a lot broader heavier as well, what do you think? His name is Raven