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.338 Hornady 285gr ELD-M?

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trigger29 View Drop Down
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X = 180 Y = 90 (X+Pyro)+(Y-Pyro) = ?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote trigger29 Quote  Post ReplyReply Direct Link To This Post Posted: November/30/2016 at 01:29
We use full hard copper. It's as hard as it gets. Most bullet companies use gilding metal jackets that are harder than straight copper, so being too hard isn't an issue for us

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bigdaddy0381 Quote  Post ReplyReply Direct Link To This Post Posted: December/07/2016 at 06:18
Originally posted by trigger29 trigger29 wrote:

We use full hard copper. It's as hard as it gets. Most bullet companies use gilding metal jackets that are harder than straight copper, so being too hard isn't an issue for us


What have you done to test this.
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Steelbenz View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steelbenz Quote  Post ReplyReply Direct Link To This Post Posted: December/07/2016 at 06:50
I'm about to be labeled a heretic but here goes! Read The Perverse nature of standard deviation by Denton Bramwell. It's a short piece but packs volumes of info into laymen's terms or if you're a glutton for punishment, read Fundamentals of Quality Control and Improvement by Amitava Mitra. He is a professor at Auburn but I don't hold that against him. I have a copy of the Third Edition if you'd like to barrow it.
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trigger29 View Drop Down
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X = 180 Y = 90 (X+Pyro)+(Y-Pyro) = ?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote trigger29 Quote  Post ReplyReply Direct Link To This Post Posted: December/07/2016 at 11:07
Originally posted by Bigdaddy0381 Bigdaddy0381 wrote:

Originally posted by trigger29 trigger29 wrote:

We use full hard copper. It's as hard as it gets. Most bullet companies use gilding metal jackets that are harder than straight copper, so being too hard isn't an issue for us


What have you done to test this.
I have the mill test reports from the copper showing hardness. Copper in essence will only get so hard. Copper work hardens so the process used to roll our bar stock into rods hardens it. Annealing would be done through heat. Since our bullets are cut under high pressure coolant, we don't heat them enough to anneal them any. They are as hard as they're going to get. Though still not as hard as most gilding metal jackets.

"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
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