Bullet firing sound
When hipfiring or scope firing you hear the complete bullet firing sound.
When scoping immediately after hipfiring or unscoping immediately after scope firing you only hear the first part of the bullet firing sound.
Reload sound and animation
Whilst scoped you don’t hear the reload sound.
The reload sound and animation will only start after unscoping, but this should already be in-progress as the timer denoting delay between shots has already started.
This also means that depending on when you unscope after firing you can fire mid-animation, which is clunky.
The solution is to start the reload sound and animation immediately after firing whilst scoped, which is what happened when hipfiring at the moment anyway, and additionally means that whilst scoped you know when the next round is chambers and ready to be fired by sound alone.