Unload it. Check it. Then check it again. Unloaded guns do NOT kill people. Guns that were THOUGHT to be unloaded do.
soft clean cloth
No.
If you are talking about the 7.62x51 and the .308 Winchester then yes they can safely be interchanged
Go to the Henry website, and download the owner's manual for your rifle.
No.
Vinegar will do it.
Ideally through the fixture trap or clean out and NO chemicals
It's a fine inexpensive rifle for youth. It is designed for learning how to handle a rifle safely and for plinking at targets. It is not a hunting or competition rifle, but is designed for fun.
To clean a Western Field .22 rifle, first ensure it's unloaded by checking the chamber and magazine. Use a cleaning rod with a bore brush and patch to scrub the barrel, applying appropriate gun cleaning solvent. Wipe down the exterior with a cloth, and lubricate moving parts with a light gun oil. Finally, reassemble the rifle and store it safely.
How do i clean a projector television screen safely
You can safely store clean cutting boards in a dry and well-ventilated area, away from any sources of contamination or moisture.
Do you not have an owner's manual? Have you tried an internet search on "rifle cleaning procedures"?