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Thread: 7.62x54r sizing

  1. #21
    JeffreyDeGraff's Avatar
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    Jul 2018
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    I use an RCBS 2die set with Lee factory crimp die. The rcbs comes with a smaller (for .308) and larger ( for .311-.312) expander balls. I recently did a test loading .311 bullets in brass sized for 308 and brass sized for .311. Same powder charges and seating depth, long story short, they both shot the same. Same point of impact same group size. My rifle does shoot better with a light crimp though.


    JTD


  2. #22

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    Premium Member
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    Quote Originally Posted by JeffreyDeGraff View Post
    I use an RCBS 2die set with Lee factory crimp die. The rcbs comes with a smaller (for .308) and larger ( for .311-.312) expander balls. I recently did a test loading .311 bullets in brass sized for 308 and brass sized for .311. Same powder charges and seating depth, long story short, they both shot the same. Same point of impact same group size. My rifle does shoot better with a light crimp though.


    JTD
    Interesting info. I will keep it in mind when I'm ready to load up some new ladder loads. My expanders won't arrive until Monday. I will experiment with crimping as well.

    Sent from my SM-G950U using Tapatalk


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