Fred, You are correct, some of the pellets are still bright others are rough and oxidized. Pellets measured .091-.095 oxidized or not, so 7 1/2 they are.
The pliers test shows pellets to be softer than the Eagle shot I'm using to reload.
The oxidation is no surprise considering their age. I'm not as old as they are and I'm beginning to "OXIDIZE" in a few spots to!
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"Double guns are a sport and a pastime built into a beautiful package to which I attach myself when entering the great theater of autumn, those days now grow more precious because we are given so few".. Robin Lacy