A friend recently acquired a Garand in a trade. Included in this was some M1 ammo. It is packed in cardboard boxes each holding 2 loaded en bloc clips. Markings on the boxes are POF - DPA - 30 inch - MK4Z. Date is 1968. The only thing I know is that it is Pakistani. I advised him NOT to shoot it until we checked it out, that's why I'm posting this. Is this stuff corrosive? Is it a proper load for the M1 Garand? Should he shoot it or just break it down for components? The ammo and the boxes are in good shape. It appears to have been correctly stored. I understand this should probably be posted on the Ammo Dump forum, but I figured it would be seen by more people here. Any help with this is appreciated.