mpeltier Posted February 21, 2008 Share Posted February 21, 2008 I started using a new 308 AR last season for Heavy Metal 3-gun. The only ammo to go thru it to date is about 300 rds of S&B commercial ammo marked non-corrosive on the box. Bought new also late last year (packed in the current green and yellow boxes). I went to clean it the other day and was horrified when I looked thru the barrel at the complete coating of rust in the bore. It looked like a chia-pet had moved in to my rifles barrel. The inside of the BC comp also was very badly rusted. The bolt assembly is spotless, but the roll pin in the front sight base is clearly rusted a bit. I immediately set about scrubing and cleaning and the bore luckily is not pitted or visibly damaged, in fact it is very shiney again with good deep rifling. I have other AR's that have CM barrels and have never had any exhibit any type of rusting such as this. Could this non-corrosive ammo actually be corrosive?????? If so is there anything else neccessary to remove the corrosive compounds from the barrel???? Link to comment Share on other sites More sharing options...
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