The Russian SKS rifle is a very popular gun because of it’s simplicity and reliability just like the AK-47. Ammunition, 7.62×39, is very cheap but some is corrosive. You have to clean a rifle differently (use warm water) when using corrosive ammo. Corrosive ammo leaves behind salts (potassium chloride/sodium chloride) that will corrode metal very quickly if not cleaned properly.
Learn how to clean the Russian SKS rifle after using corrosive ammunition. This video features a professional gunsmith from Brownells. Learn from the best.