I picked up a batch of 303 ammo today at the flea market. In the batch was some current production Remington that I plan to shoot. There was also some military surplus that I will shoot if it is non-corrosive. Among the military ammo is three different headstamps. If you would please let me know which are corrosive. Thanks for any help.
First headstamp20210109_115256.jpg
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Second headstamp
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Third headstamp
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First one reads DAC VII 1942
Second one reads FN 48
Third one reads GB 54 7