Is the slingshot aimed at a big bow or a small bow?

Slingshot flat skin aims at the big bow door more accurately than the small bow door.

Does the size of the bow door affect the accuracy? This will start with the principle and play of slingshot.

As we all know, whether the slingshot has a frame or not, it needs to be held horizontally to hit the target accurately. The steel ball must pass through the midpoint of the edge rubber band connecting line (that is, the midpoint of the bow door). Only when this point and the target are in a horizontal straight line can we hit the target.

In practice, when we aim at the target, we usually use a horizontal grip. When using the horizontal grip, the central point of the bow door is blocked by the rubber band, so we transfer this central point to the upper bow eye position and aim at the target as a reference point. But in fact, the steel ball flies from the middle point of the arch door below the upper arch eye, and the distance between the middle point of the arch door and the upper bow arm is an important factor that directly determines the distance between the reference point and the target, as shown in the figure below:

Let's take a look at the contrast map of the aiming points of the big and small arches.

Obviously, the reference point of the big bow gate (left) is close to this target, and the distance between the reference point of the small bow gate (right) and the target is 1 cm, which is the gap. The small bow gate will misjudge the aiming point in actual aiming, resulting in a decline in accuracy. However, the big bow door does not have this deficiency when aiming horizontally. What I'm talking about here is only the comparison between horizontal grip and aiming, and the size of the bow door with oblique grip (except for small included angle) and vertical grip has no effect.

The final conclusion is that the larger the arch, the smaller the distance between the upper arch eye and the target, and the smaller the arch, the greater the distance between the upper arch eye and the target. Therefore, the big bow door is better than the small bow door in horizontal grip aiming.