Anyone bumping the 6.5 PRC to 7mm?

Discussion in 'Big Stuff -- 6.5mm, 7mm, 30 Cal' started by 4xforfun, Jan 10, 2019.

  1. 4xforfun

    4xforfun Gold $$ Contributor

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    The title says it all. The .532 body instead of the .552 of the 7SAUM would be nice.

    Anyone? I see a thread about 7 months ago that didn't go anywhere.

    Tod
     
  2. Rum Punch Colonial

    Rum Punch Colonial

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    Or the Thread I just started a couple days ago. .338 RCM is the same only smaller Caliber. Roughly 69 Grains Capacity, similiar to the 280 Ackley Improved. I made some from 68S brass, .520" vs .530" just to see how they looked. I use the Neck - Shoulder location of the 7-SAUM because I don't have a 6.5 PRC die set. This Cartridge needs a 35-40 Degree shoulder, due to poor quality Brass from Hornady. Optimum Dimensions would Duplicate the .300-RCM Shoulder Location with at least 35 Degree Shoulder To match Neck location of the 7-SAUM. This would afford Roughly 73 Grains Capacity. This could Rival the 7 Rem Mag performance,,, - at TRIPLE the Cost. IMO / Edited to remove any confusion regarding Loads or Powder.
     
    Last edited: Jan 10, 2019
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  3. jamesh

    jamesh Gold $$ Contributor

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    Curious why you are necking up the 6.5 PRC instead of necking down the 300 RCM, just curious? That said I have a reamer for the 7mm/300 RCM but have not chambered anything yet but plan to sometime yet this winter. Basic difference between the two is that the RCM is about 1/10" longer than the PRC, slightly more case capacity.
     
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  4. alf

    alf Silver $$ Contributor

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    Explain........
     
  5. 4xforfun

    4xforfun Gold $$ Contributor

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    Because I never even heard of the 300 RMC.:(o_O.

    Now I need to do more research...damn you....LOLOL:D
     
  6. 4xforfun

    4xforfun Gold $$ Contributor

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    I know ALF had a lot of good to say about the 6.5 PRC....just thinkin out loud about a 7mm.
     
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  7. jamesh

    jamesh Gold $$ Contributor

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    SAAMI Cartridge and Reamer prints
     

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  8. Nx coatings

    Nx coatings

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    6.5 prc is a 300rcm necked down
    6.5 persion ruger compact ...... Mag

    Its a 6.5 rcm
    With a name change to help sales
    Do to the rcm not being so populer
     

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