That is a beautiful gun. I have a 5.5 inch 500 Linebaugh built by Linebaugh. It is built like a bank vault.

I have to say the top end loads, 450-525 grain bullets pushed hard are beyond my liking as a handgun shooter. They're just more than my old wrists want to take. A 450 grain at 900-1000 fps is plenty for me. Very shootable and still a very big hammer.