I have a question for anyone who has used Barnul ammunition. Is this stuff corrosive? I ask besause not to long ago I ran mabey 60rds through my M305, took it home and ran a few patches through the bore, swabbed the bolt face and put my rifle to bed in my safe. After a couple weeks I went to fondle my favorite man toy and noticed a powdery green residue around the ports of my muzzle brake. I've used just about every available brand ammo (including norinco) and never had this happen before. Input from anyone who has used Barnul ammunition would be greatly appreciated.
Is Barnul .308 ammo corrosive?
- Thread starter Nushooter
- Start date
It's not supposed to be corrosive and every box I've looked at says non-corrosive on it.
Green powder would be copper-oxide. That'll show up if any copper residue from the bullet (jacket or plating) is left exposed to air. Unless what you found is brown/orange rust (iron-oxide), it isn't your rifle corroding. The very thin copper layer (pressed? plating?) on bimetal jacketed ammo (steel jacket, thin copper layer on the outside) often leaves a copper-dust residue that corrodes easily on several of my rifles. So long as it's green, I just scrub it out and don't worry about it. It may be a sign that the bullets are only copper washed and not really plated properly as I've seen this happen with the Norinco 7.62/308 ammo that has copper washed steel cases. In that case it leaves the copper dust inside the chamber often.
If the ammo was corrosive, you'd see brown/orange rust around the muzzle instead of green. I didn't wash my SKS well enough once and found the entire muzzle crusted in brown rust a couple weeks later. No green to be seen.
Green powder would be copper-oxide. That'll show up if any copper residue from the bullet (jacket or plating) is left exposed to air. Unless what you found is brown/orange rust (iron-oxide), it isn't your rifle corroding. The very thin copper layer (pressed? plating?) on bimetal jacketed ammo (steel jacket, thin copper layer on the outside) often leaves a copper-dust residue that corrodes easily on several of my rifles. So long as it's green, I just scrub it out and don't worry about it. It may be a sign that the bullets are only copper washed and not really plated properly as I've seen this happen with the Norinco 7.62/308 ammo that has copper washed steel cases. In that case it leaves the copper dust inside the chamber often.
If the ammo was corrosive, you'd see brown/orange rust around the muzzle instead of green. I didn't wash my SKS well enough once and found the entire muzzle crusted in brown rust a couple weeks later. No green to be seen.
