If it's a real old winchester you'll probably ruin it's value. If it's a post 64 it probably wont hurt much. I did a savage bolt action .410 years ago and had good results with Birchwood and Caseys' kit. Do the blue and rust remover outside ....stuff stinks up the outdoors. good luck
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The needs of the many out weigh the needs of the few or the one
Blueing a gun on my own?
