Sizing down 6.5 lapua brass to 6

Discussion in 'Reloading' started by nddodd, May 6, 2010.

  1. nddodd

    nddodd Well-Known Member

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    Alright fellas I've got a problem sizing down my new lapua 6.5-284 brass to 6-284 Ive tried using my redding bushing die, redding neck size die and all it does is just smash the shoulder down I've lubed the neck nothing works. I know the brass is super soft, so I thought I might be able to put a few cases in the fridge for a little bit to try and make it a little harder will this work or do I need to sell the brass and buy a diffierent type that's not as soft.

    Thanks,
    Nathan
     
  2. alf

    alf Well-Known Member

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    The brass is not too soft. The short neck and 30 degree shoulder work against you when trying to neck down.

    Two ways that I've done it. Either neck turn a little first, or use a intermediate sized bushing, or both.
     

  3. mudbug

    mudbug Well-Known Member

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    I am now just starting to load for the 6-284 and all I had to do was take Lapua 6.5-284 brass lube it well and run it thru my 6-284 Redding full length die. Didn't have any shoulders collapse.

    I did run a few thru my redding bushing die with a 280 bushing at first and didn't have any problems there. The only problem I have is I think my necks are too thick, a bullet will not slide thru the neck of a fired case. I'm going to ream the necks and see if that helps.
     
  4. Kevin Cram

    Kevin Cram <b>SPONSOR</b>

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    Nathan,

    You won't be able to neck them down with just the bushing die. Your moving the shoulder down and a little forward also from where it was 6.5 as well as necking it down to 6mm. Like mudbug said he did, use a full length resizing die. Just run it through the resizing die until you see it just making contact with the shoulder. If your chamber is a no turn neck try it in the gun. If it's a turn neck you'll need to turn your necks to fit and see if you sized it enough to fit for fire forming.
     
  5. boomtube

    boomtube Well-Known Member

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    Sizing necks down more than 5-6 thou with a neck die rarely works, it has no way to support the shoulders properly.
     
  6. nddodd

    nddodd Well-Known Member

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    Thanks so much for the info guys I appreciate it. I know this wil sound crazy but I put ten cases in the freezer for about 30 minutes went through the neck die no problem. The only thing that happened was the necks had a tough time draging over the expander had a little bit of run out. Put them in my case trimmer and cut about 7 thou off.


    Nathan