Not bad at all.
The action itself is really smooth, and it is realistic.
But...
In my opinion, gun should raise 45 degrees, when clip bolts off. The current action seems that gun butt drops from shoulder, then rotates 90 degrees, thus looking bit clumsy.
One another type of reload idea: Left hand should keep gun straight and supported to shoulder, and reload should happen on right hand.
If you could provide 3rd person view, this could give whole lot idea how it would be reloaded.