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On Wed, 01 Aug 2018 07:40:19 -0400, Wayne.B
wrote: On Wed, 01 Aug 2018 00:24:54 -0400, wrote: On Tue, 31 Jul 2018 20:28:11 -0700 (PDT), Tim wrote: - hide quoted text - On Tue, 31 Jul 2018 22:04:39 -0400, Wayne.B wrote: On Tue, 31 Jul 2018 21:45:10 -0400, wrote: https://tinyurl.com/ydgtok3a Lake city is mil spec stuff. === How is it possible that a brass case will attract a magnet? Is it brass plated steel? Somethings fishy. You are right. I didn't see that. ..... They said it’s reloadable and boxer , not berdan primed. So, But the finish is off? I did more looking and the NATO M-80 spec allows a copper jacket or a BiMetal jacket. The cases are brass. === If they will attract a magnet there must be some steel somewhere. BiMetal (bullet jackets) are a soft steel alloy. I have some pictures around here where I pulled one and scratched it up. They are pretty soft for "steel" but it is still supposed to be tougher on the bore. Barrel life is degraded after 4,000-5,000 rounds, roughly equal to 10,000 rounds or more as tested in an AR-15. Slower bullets have less effect. For folks like Harry who sells his guns every year or so, it is insignificant. |
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