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Thread: Understanding Velocity SD/ES Variation

  1. #1
    Junior Shooter
    Join Date
    Jan 2017
    Posts
    6

    Understanding Velocity SD/ES Variation

    Hello,
    I am new to reloading enjoying it and learning a lot. I am hoping someone can help me with a question I have about why velocity SD and ES varies with different Powder charges with all other variables being the same.

    For example load A has a 40gr charge and a high SD/ES while load B has a 41gr charge and a low SD/ES. Both load A and B use same bullet, powder, primer, brass, seating depth and neck tension.

    Thanks


  2. #2
    Junior Shooter
    Join Date
    Jan 2017
    Posts
    4
    ww.techbookreport.com/tutorials/stddev-30-secs.html

    Hope that link helps


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