When you reblued it the first time, just curious what method you used. There is a serial number range for which the steel in the receiver will not accept hot blueing, it turns purple. I discovered this when I reblued one for my brother with Brownell's Oxynate 7. Receiver turned a deep mottled purple. It looked a far cry better than the before rifle, just wasn't the typical "blue" that the rest of the gun turned out.