User blog comment:Schwxnz/TF2 Feats/@comment-40062969-20191009223901/@comment-37960362-20191018165115

sorry for the late answer, i haven't seen your comment until now.

it scales to heavy's physical ap because he stopped the train with nothing but his brute strenght- take scout for instance: if he had been in heavy's position, he would have survived but the train would have pushed him like a rag doll because uber doesn't give a strenght boost.

yes it is calc stacking- i haven't adjusted the calc yet. it will likely yield results in the building - large building level range.

i got the weight of the train from [//www.quora.com/How-much-does-a-freight-train-weigh this]