In 1984 when I made my first tc hawken I bought a browning agent at the gun shop worked great. Bichloride of mercury. Can't get it now except from chemical companies. Gonna try and see how the current stuff compares.
I personally finish stock and barrel separately assuming all fitting is complete. That way I can do hand rubbed Truoil as the barrel rust blues or browns. When each is done to satisfaction they are married and taken to the range. 🙂
Oh, so it is the the gun that does the harm, not the loser shooting it. So you trash a class of guns and the lovers won't choose another weapon, they will just stay home and watch CBC comedies. Idiocy.