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My Hornady 9th Ed. load data book says Berdan primers ARE corrosive, Boxer primers are NOT, yet I see this and a few other foreign (mostly Russian) ammo brands say "Berdan NONcorrosive", how can that be? Berdan physical design with Boxer chemistry inside?
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Leon, For surplus ammunition, there are two main types of primers: Berdan and Boxer. Boxer-primed ammunition is not corrosive, so you don't have to worry about it.***** Not all Berdan is corrosive*****, but almost all of the older surplus ammunition you find on the market with Berdan primers is corrosive.