Current Detroit Jacket Sizing

Can anybody post the measurements (pit to pit etc.) for both a medium and a large? I searched but can't seem to find anything.

I am new to Carhart jackets and always wanted a Detroit. Still wished they made the dark brown but black will do. Unfortunately where I live I cannot try on locally.

I am 5'7, 170lbs and about a 41 inch chest. From what I am seeing with a large I think I will be swimming in it.