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Old 09-19-2019, 05:50 PM
fugawe

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Cleaning Case Hardened Receiver



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I just got A Savage 72(Modern Favorite) that has some serious freckling on the receiver. I got most of it with 0000 steel wool and WD40. Can I safely use a rust remover to get the stuff in the pits? Will it affect the case hardening colors?
The bluing on the barrel and the stock finish are in great shape. The internals are nasty and the firing pin is broken(new one ordered). It should make a great shooter.
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Old 09-19-2019, 07:14 PM
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That is a weak faux case colored (not color case hardened) receiver, basically a chemical surface treatment. Dont scrub too hard with steel wool, it leaves micro scratches and Def Dont use rust remover!
When dealing with rust on firearms is is best to use something softer than the steel, I often use a brass scaper made from a junk 30-06 case flattened out at the mouth and filed to a chisel edge. You 'wet' the rust well and judiciously scrape the scale off, once you hit dry rust re-wet, let soak, repeat. The brass will never harm a steel surface.
The is a product called a 'Big 40'pad (?) that I have not used but is well regarded.

Last edited by gcrank1; 09-20-2019 at 10:28 AM.
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Old 09-20-2019, 08:28 AM
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IMO I'd be really leery of using any rust remover for the pitting.
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Old 09-20-2019, 11:52 AM
fugawe

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Thanks, gcrank! I wasn't aware that there was a chemical process that imitated color case hardening. I have a Big 45 pad coming. Once it is as clean as I can get it I'll coat it with Renaissance Wax to seal it.
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Old 09-20-2019, 01:15 PM
gunsmith10367

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leaning case hardened receiver.............

No matter whether the case colors are real or faux case colors they are pretty fragile when it comes to cleaning. If they have showed no ill effects from the WD-40 and 0000 steel wool the Big 45 pad should not cause any damage. Due to it's nature it may or may not remove the rust/corrosion any better. While Renaissance wax is not a bad idea, Brownell's sells a baking lacquer which is what the pro's use to seal and protect Case Colors.
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Old 09-25-2019, 01:55 PM
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Boil it

You might try boiling the receiver in distilled water and turn the rust into blueing. I don't know if this will affect the chemical case coloring but I have done it on old shotgun parts with light freckling with good effect.

Dennis
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