HB 40X 22lr Barrel Contour

Is there any difference between the heavy bbl on a 40XB and the heavy bbl on the earlier 40X 22RF? If not, I've still got the heavy barrel I removed from my CMP 40XB before shipping it to jelrod for the V22 magazine repeater conversion.
 
Is there any difference between the heavy bbl on a 40XB and the heavy bbl on the earlier 40X 22RF? If not, I've still got the heavy barrel I removed from my CMP 40XB before shipping it to jelrod for the V22 magazine repeater conversion.
I have my barrel too , keep it in my closet - probably more deadly as a bludgeon than as a gun barrel….
 
40x
Barrel 0.877. Crown side. 1.175. Action side.
26 5/16 long from end of action to crown.
This is my dads old 40X. Not sure if barrel was replaced or not.