Originally Posted by
jmart
Considering a VFG, how much of the force vector is perpendicular to the HG (deflection/torque) vs how much is along the axis of the fore end (compression)? When I think of a VFG, I think of the user pulling back against it to get the butt solidly positioned in the user's shoulder. Only a small fraction is used to pull down to combat muzzle rise. Same thing with a NM sling on a Service Rifle -- the shooter is looped up and the force of the sling, attached to the upper arm, is primarily pulling the weapon in tight into the user's shoulder. This force is applied more "along axis", in compression, rather than in a perpendicular direction to the handguard.
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