You must be kidding us Deerslayer 303. You don't actually do that do you?
uhhh NOPE not kidding you in the least. That is what I do. My revolver sits for a little while b4 reloading while the chambers are swabbed out and the exterior wiped down. I have also seen many videos of folks loading from the flask with the appropriate spout. Now my rifles I load with a sliding measure. And when pouring powder in the chambers from the flask the valve is closed.