I would like to make a bullet shot sound far away when it is using the sound effects
I think you would have to use a combination of Sound properties:
float RollOffMaxDistance [notreplicated] The maximum distance, in studs, a client’s listener can be from the Sound\s origin and still hear it. Only applies to Sounds parented to a Part or Attachment (3D sounds)
float RollOffMinDistance [notreplicated] The minimum distance, in studs, at which a 3D Sound (direct child of a BasePart or Attachment ) will begin to attenuate (decrease in volume)
RollOffMode RollOffMode Controls how the volume of a 3D Sound (parented to a BasePart or Attachment ) behaves as the distance between the listener and sound’s parent changes.