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Schuetzendave
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Making 8x58R Cases
Jun 18th, 2014 at 7:00pm
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To make 8x58R cases:

I trimmed .45-90 Starline brass to 2.274"
I annealed the mouth of the brass.
I first reduced it to .408" diameter mouths with my .40-65 F.L. die and Imperial sizing wax.
I finished shrinking to 8 mm (.321 mouths) with the 8x58R F.L. dies. using short passes with Imperial sizing wax.

I then fire formed them using 16 grains HS6 powder topped with cream of wheat to the shoulder and a foam plug in the neck.

Four cases crushed since I annealed them too much and 10 cases split because they were still too brittle.

Ended up with 86 cases.
« Last Edit: Jun 19th, 2014 at 10:15am by Schuetzendave »  
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FITZ
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Re: Making 8x58R Cases
Reply #1 - Jun 18th, 2014 at 9:17pm
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Well they sure look nice! Nice job. Regards, FITZ. Smiley
  
FITZ
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craigster
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Re: Making 8x58R Cases
Reply #2 - Jun 22nd, 2014 at 1:04am
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They do look a bit nicer than the ones I've been making  from 8x56R.
  
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Schuetzendave
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Re: Making 8x58R Cases
Reply #3 - Jun 23rd, 2014 at 2:06pm
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Thanks guys.

For me the secret was repeated slow steps with the Imperial sizing wax. Being careful to not put too much on.
And I was not able to get good cases untill I went to a two step process of reducing the size. (to .40 then to .32)
And even then cases were wrinkly until I fire formed the cases.

I tried one case without annealing it. It was a total diasater, crinkling and cracking the case.

Dave
« Last Edit: Jun 23rd, 2014 at 2:13pm by Schuetzendave »  
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6mmintl
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Re: Making 8x58R Cases
Reply #4 - Jul 9th, 2014 at 1:17am
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craigster wrote on Jun 22nd, 2014 at 1:04am:
They do look a bit nicer than the ones I've been making  from 8x56R.



Try a wrap of electrical/vinyl tape 1/4" wide around base to get .010"-.014" larger base diameter to fit and fire form.
  
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craigster
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Re: Making 8x58R Cases
Reply #5 - Jul 11th, 2014 at 12:16am
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Good idea re the electrical tape. Quilters tape is what I have been using.
  
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sportslube
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Re: Making 8x58R Cases
Reply #6 - Jul 11th, 2014 at 7:55am
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can you show a picture and explain the tape process
bill
  
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trapdoor Dick
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Re: Making 8x58R Cases
Reply #7 - Jul 11th, 2014 at 1:47pm
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As long as we're on this subject, well sorta, anybody done any of this the 8x58R Sauer?  It's a different critter from this one. Reminds you of a stretched 32-40. It is the German equivalent of same. I've been modifying 9.3X72R Sauer when I can find them. 

TD Dick
  
Democracy is two wolves and a lamb deciding what to have for dinner. Liberty is a well armed lamb. - Benjamin Franklin
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