Virtual bullet doesn't line up with real bullets

Yeah that doesn't help me either, predicting my next location and then aiming via that doesn't make it line up either. I also wait until gun turn is complete.... Still not aligning..

Also, how does bullets collision work? I thought it's a line segment that's between last tick's location and this tick's location (length of the velocity). Whatever the line segment intersect will be collided (other bullet lines or robots)

Maybe try staying still while shooting to see if that is the problem? If it still doesn't line up, it is some sort of gun alignment issue.