Found a bug that popped up with the recent patch. I know you tried to fix some of the reloading issues related to manually-loaded firearms but a new problem has arisen.
When using a manually loaded firearm (Cowboy Repeater), crouching, and loading less than a full clip (less than 7 rounds), the reloading animation never ends. It continues to cycle the animation of the character loading a round. Too break the cycle you can either stop crouching, or use the change ammo type command (if another ammo type is available).
I know you have been trying to squash this bug, I understand how complex this particular system is. Hope you have better luck next time. I can post more details if necessary.