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Old 09-22-2019, 05:36 PM
BillW73 BillW73 is offline
Join Date: Jan 2010
Posts: 12
Default .30Cal Lot FN 58f/57

I just acquired a box of ammo marked .30 cal Ball BDR,
Lot FN 58f/57. All the cases I looked at had headstamp of FN 57.
It is in cloth bandoleers with striper clips. The stripper clips are very bright almost a chrome color.They are Berdan primed.
The box has a stencil that says "Repackaged".
My reading says that any thing FN 58 or later should be non-corrosive, however with all the headstamps saying FN 57, I should assume this stuff is corrosive, correct?

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Old 09-23-2019, 04:25 PM
togor togor is offline
Join Date: Nov 2009
Location: Wisconsin
Posts: 858

Could be non-corrosive. Test by firing primer onto bright steel and observing residue over next week. Humidity accelerates the process. I have tested FN 55 and found it to be non-corrosive. Non-corrosive, the black spot stays black. Corrosive, rust forms. An old lawn mower blade works great, or any piece of steel bar stock. Hit it with wire brush or angle grinder to brighten it first.

Last edited by togor; 09-23-2019 at 04:29 PM.
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Old 09-24-2019, 06:01 PM
Jeremy2171 Jeremy2171 is online now
Join Date: Feb 2010
Location: NC
Posts: 992

Its corrosive...
Semper Fi....
USMC ret..
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