Even with modern ammo, you still need to clean that gun
The Remington Arms Company lays claim to the invention and introduction of the non-corrosive primer for rifle, shotgun, and center fire pistol cartridges. Before the introduction of the non-corrosive priming, it was necessary for the owner of a shotgun or rifle to laboriously scrub the bore with soap and water, flushing out the fouling left by the ammunition of the day.
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