How to fix that annoyingly long PK reload animation
The wall bounce reload cancel also works when your chamber is empty
Recap:
Shorter animation - press reload button right after or any time after the gun cocks
Longer animation - happens when you press reload button right after firing a shot
The shorter animation doesn't play when the chamber is empty, so the way to avoid getting a long animation would be to reload with 1/5 bullets in the chamber.