The Navy Surface Warfare Center in southern Indiana maintains a stand of white oak trees specifically designated for the periodic restorations of the Constitution.
https://ussconstitutionmuseum.org/2015/05/11/the-wooden-walls/
Well if they are using white oak, they arent using the period methods.
She is/was made of Live Oak. Of course I doubt they could get live oak like that any longer.
That is why the shot actually bounced off her sides. There is a special, someplace, either on youtube or someplace where they actually tested live oak plank against white oak. The same thickness and all. They used three pounders and the shot bounced off the live oak plank-which Old Ironsides was made of, and penetrated the white oak, which the Brits ships were made of.
The 6 pounders stuck into the sides of the live oak plank, but went right through the white oak.