Removed this prehistoric beast this weekend. My nephew was trying for LMB and snagged this guy on the bottom. I'd estimate ~ 40 lbs. The turtle was...annoyed with me. They can really snap that head out and around their shell, so gripping at the back 1/3 is highly recommended.
[Linked Image from i.imgur.com]

"Politics": derived from 'poly' meaning many, and 'tics' meaning 'blood sucking parasites'.