loading rifle from flask
It may or may not be safe.
Been doing it for 40 years. And yeah, I know it only takes once.
But, After I shoot I always blow down the barrel and it is usually
a minute or so before I reload.
I either have to walk out to target to confirm where POI was or wait for partner to walk back.
If hunting I usually take a few to listen for a confirmed hit.
Also I don't pour from flask direct with the gate open.
I fill spout close gate. I pour from an angle with spout back off to side.
But thanks for your concern and warning.