If you ever fired a rapid fire match and then picked the rifle up by the barrel, you would know the answer....
Cause they double as clubs.
The full wood keeps the barrel the same uniform temperature when firing, if these rifles did not have full wood, the top of the barrel would be cooler causing the barrel to warp upward and shoot high.
It gets worse when you are tasked with giving suppressive covering fire and firing long bursts of ammo.
![]()
You beat me to it. Wondering if that would come up.And one other reason- hot air rising from the barrel after sustained firing causes distortion of the sight picture (mirage).
milsurpo