This seems spot on for the character:
REACHER Trailer
Agree he looks more like the book description now, and for a big actor he doesn't come across as a lunkhead - which is always a good thing
Lot's of 'lets start fighting with big right hands' in that trailer too
And that might be the first time I've seen someone actively headbutt someone's incoming punch to break their knuckles - don't try that at home kiddies!