Unknownreported this suggestion
https://www.youtube.com/watch?v=9WO32gib_v4
The higher the velocity of the projectile (>5~ish), the greater the desync between the display projectile and the actual projectile hitbox. Setting projectile gravity >0 also causes the projectile to desync.
Setting tickinterpolation > 1 has no effect on the desync. You could increase the bullet forward offset to compensate, but this makes fast projectiles much more difficult to react to.
The display projectile used in the video should be 1to1 with the actual projectile hitbox.
To replicate, files are provided. [Legacy attachment omitted]