Actually no, its the water in the Windex. But as long as you are using something water based, you should be fine.I shoot corrsive. I just make sure to clean it with windex and bore cleaner really good. The ammonia in the windex neutralizes the salts.
i have read reports where some folks use balistol? instead of water and it works fine. Me, i use windex, dry it then WD40 at the range, then regular celaning at home.
I can not imagine why anyone would think it was a wives tale. The corrosion is caused by KCl or potassium chloride salts that come from the potassium chlorate explosive used in the primer. Current russian ammo is ok, but ammo from 10 years ago is not. Surplus combloc ammo is corrosive in most cases. It shoots very well, just clean your gun.It is no joke or old wives tale, Surplus ammo with corrosive primers WILL destroy your firearms if not properly neutralized.