You definitly have wrong gun then. Recoil-less is a must. 5 rounds is standard, 4 is ghetto, 3 is pretty weak.
Well the point of this topic was to find the right gun. I figured mine wasn't perfect.
And the point of my first reply was to set the standard by which you could judge your setup, which would be an easy way to confirm yours was wrong.
Anyway, I'm pretty sure It's rath+/ rath+/ agna which I assumed you had right since you wrote as much in your first post. Now that you describe your actual loadout, you probably have the parts in wrong order.