I am developing a FPS project with Unity, I tried searching for a way to make the gun shoot inside the crosshair but I didn’t find anything about it.

The issue when trying to generate a random Vector to add on the Raycast is that it mismatches the size of the crosshair.

In particular when standing still the bullet goes outside the crosshair:

When moving the bullet matches the crosshair:

When running the bullet doesn’t match the crosshair:

Here is the code for the hipfire spread calculation:

        //I did set hipfireSpreadMultiplier to 0.05
        float hipfireSpread = 1 / GetGunHipfireAccuracy() * hipfireSpreadMultiplier;
        randomDirection = Vector2.right * hipfireSpread;

        Transform virtualCamera = PlayerController.SINGLETON.playerVirtualCamera;
        if (Physics.Raycast(virtualCamera.position, virtualCamera.forward + randomDirection.x * virtualCamera.
            right + randomDirection.y * virtualCamera.up, out RaycastHit raycastHit, 900, enemyLayerMask))
            Debug.Log("I did hit " + raycastHit.transform.name);

And here is the code for the crosshair size calculation:

        //I did set crosshairSizeMultiplier to 100
        float size = 1 / PlayerController.SINGLETON.GetGunManager().GetEquippedGunHipfireAccuracy();
        crosshair.sizeDelta = Vector2.one * size * crosshairSizeMultiplier;

I think that the crosshairSizeMultiplier and hipfireSpreadMultiplier variables could be the cause of the desynchronization since I did put values I think that are ok.
I have really no clue how to solve this issue since there is no information on the internet.

I did try to change the values of crosshairSizeMultiplier and hipfireSpreadMultiplier in order to try finding the right combination so that it would match but I didn’t succeed.

I did try to map the crosshair size to an animation curve, it did kinda work but it isn’t versatile at all and really time consuming plus not precise.