.35 Remington cases short headspace measurement and fire forming
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Thread: .35 Remington cases short headspace measurement and fire forming



  1. #1
    Tinhorn
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    .35 Remington cases short headspace measurement and fire forming

    I have a bunch of .35Rem brass that is well below SAAMI specs for headspace, ie, 1.543-1.547" versus 1.555". Given the excessive headspace, is there anyway to fire form these cases back to spec? I have tried the Cream of Wheat method with 8.3grs of Bullseye and 19grs cream of wheat but get primers that are backed out and decreased headspace measurements. Should I consider these cases a lost cause? BTW, insufficient lubrication during resizing is the cause of the reduced head space! An expensive lesson learnded.
    1976 336C 35 Rem
    1979 336C 35 Rem
    2002 336CC 30-30 Win
    2013 336C 30-30 Win
    USN Retired

  2. #2
    Wrangler
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    Quote Originally Posted by drbrowning View Post
    I have a bunch of .35Rem brass that is well below SAAMI specs for headspace, ie, 1.543-1.547" versus 1.555". Given the excessive headspace, is there anyway to fire form these cases back to spec? I have tried the Cream of Wheat method with 8.3grs of Bullseye and 19grs cream of wheat but get primers that are backed out and decreased headspace measurements. Should I consider these cases a lost cause? BTW, insufficient lubrication during resizing is the cause of the reduced head space! An expensive lesson learnded.

    You can try what I had to do for my TC Carbine. Seat a 200 gr RN bullet way out, so that it will lightly engage the rifling and force the case back against the bolt face. Sort of a light crush fit. Load a light load - that will blow the shoulder forward & set the headspace correctly.
    Merle1

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  3. #3
    Tinhorn
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    Thanks Merle1, will give that a try. Maybe a starting load of BL-C(2). Good reason to head to the range!
    Merle1 likes this.
    1976 336C 35 Rem
    1979 336C 35 Rem
    2002 336CC 30-30 Win
    2013 336C 30-30 Win
    USN Retired

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    Tinhorn
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    Update after range time. Loaded up 5 Hornady cases with 38 grains of BL-C(2), the low end charge, and seated Hornady 200gr RN bullets @ 2.560" COAL. This put them close but not in the rifling. Crimped and shot them. Wide spread group but the cases all fire-formed to my chamber, @ 1.556"! Original head space to mid shoulder bump averaged 1.547-1.550". Readjusted the case sizer die (lubed the case correctly this time!) and bumped the shoulders back to 1.555" head space. Thanks again, Merel1!
    Merle1 likes this.
    1976 336C 35 Rem
    1979 336C 35 Rem
    2002 336CC 30-30 Win
    2013 336C 30-30 Win
    USN Retired

  6. #5
    Wrangler
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    Quote Originally Posted by drbrowning View Post
    Update after range time. Loaded up 5 Hornady cases with 38 grains of BL-C(2), the low end charge, and seated Hornady 200gr RN bullets @ 2.560" COAL. This put them close but not in the rifling. Crimped and shot them. Wide spread group but the cases all fire-formed to my chamber, @ 1.556"! Original head space to mid shoulder bump averaged 1.547-1.550". Readjusted the case sizer die (lubed the case correctly this time!) and bumped the shoulders back to 1.555" head space. Thanks again, Merel1!

    You are welcome!
    Merle1

    Team Mauser # 18
    Team 32 Special # 106
    Team 35 Remington # 586
    Team 39 # 252


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