probably because there's always some clown who brings a Ma Deuce support for his and ruins it for everybody else
I understand your point but there is a 40lbs weight restriction.
If I wanna shoot a 10 lbs rifle off 30 lbs bipods who cares?
IMO bipod is where people could actually make some nice advancements but they've essentially disallowed any progression in the area.
In that case, a weight restriction is a better solution than restricting folders. Or, perhaps separating a limited and open class.
^^Here's the rules.^^ Basically anything open aside from bipods, no one is going to intentionally limit themselves in this area.
Here is the bipod ruling, almost any other rule in the book warrants one line and then there is this>
• Bipod: The bipod can only be attached to the rifle at a single point, however, having it attached to an RRS/ARCA rail, or a BipodExT system (in each case that is mounted parallel to the bore) is allowed and can be moved during the course of fire. Bipod legs must be capable of folding or otherwise collapsing along the length of the gun. In the collapsed position, the bipod, and everything else on the rifle cannot exceed a width of 8 inches. The only mechanical elevation adjustment in the front portion of the rifle and bipod system must come from the independent movement of each of the bipod legs. (Note: This does not limit the use of a mono-pod located near the rear of the rifle). The leg can only be attached to the rest of the bipod (with the exception of springs designed for rapid deployment like on the Harris) at a single point. The folding or extending portions of the legs do not require tools to deploy/operate and if asked to demonstrate, the shooter must be able to deploy the bipod from the fully folded and collapsed position into the fully open position in under 10 seconds.
The bipod may only have two points of contact with the ground. The foot of the leg that comes in contact with the ground may not exceed 4 inches in width or length. The rifle and bipod must remain rigid when firing, there can be no recoil dampening or movement of the rifle in relation to the bipod in any way for the purpose of damping/reducing recoil. Nothing can be placed on top of the bipod/rifle to add additional weight/support. Common examples of these are sandbags and stakes. No sharp pointed bipods which will damage the blast sheet are permitted.
IMPORTANT: Unconventional designs are encouraged , but must be sent in for approval ahead of time. As with all the rules, any team seen to be attempting to bend the bipod rule will be disqualified.
IMO someone got beat by a guy with a better bipod and decided that should be illegal.