Is there any explanation for this?

[dthecoolest]

Wait you are using a .Touched event for fast bullet hit detection?

.Touched is unreliable because of how the physics engine works.

It’s possible the bullet will just phase and pass through the part instead of actually colliding and touching the part in a phenomenon known as tunneling @0Shank. This seems to be happening for your bullets until you move it through the center of the dummy where the wall is the most thick where it has a chance of detecting the bullet.

How to properly create projectiles with RayCast?

If you want to make a projetile you need to have continous collisions, because of how physcis engine handle things using discrete collisions which isn’t suitable for fast moving objects. This is why .Touched actually doesn’t detect for fast moving objects (not because it’s unreliable it’s because of how physcis engines work). This is a problem called Tunneling. [image] https://gyazo.com/cd0aeafdef03b244f877b6c078789f57 Basically with discrete collisions this is what happens with high veloci…

This is the reason people will use fastcast and why it’s the most popular resource there is.

Edit: Otherwise, try slowing down the speed of your projectiles, or increasing hitbox size if you still want to work with the .Touched method.