Gents I gotta say, "Who the hell needs shooting sticks"?
My old D.I. would roll over in his grave if I mounted my rifle on a set of so called shooting sticks. Those are for people who never learned to shoot a blessed rifle in the first place or master the skills to do so. Now that's my story hunters.
An average rifleman will a little practice with sticks will outshoot 99% of folks shooting offhand.
After all, Boddington is a Marine and uses sticks.