"if you melee right after you shoot, the immediate shot that is about to reload will take longer than any consequent shot-to-reload. And meleeing at any time after the first reloaded shot doesn’t increase the reload time on any of the consequent reloaded shots.
Either the first shot shouldn’t be delayed after melee, or all of them should be delayed after melee. It isn’t consistent."
info by /u/iSinner