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Thread: Working our drop for rounds

  1. #1
    Member Tangobravo's Avatar
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    Working our drop for rounds

    What set up do you all use for figuring out you’re drop at ranges?

    Cheers

    Tian


    Sent from my iPhone using Tapatalk

  2. #2
    Member Tangobravo's Avatar
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    Found this, looks like a tracking test but do you guys use the same principal? Massive bit of paper with 0cm to whatever and then shoot at each range to see the drop?


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  3. #3
    Full of shit Ryan_Songhurst's Avatar
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    Use a ballistic app and shoot at steel
    veitnamcam and dannyb like this.
    270 is a harmonic divisor number[1]
    270 is the fourth number that is divisible by its average integer divisor[2]
    270 is a practical number, by the second definition
    The sum of the coprime counts for the first 29 integers is 270
    270 is a sparsely totient number, the largest integer with 72 as its totient
    Given 6 elements, there are 270 square permutations[3]
    10! has 270 divisors
    270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.

  4. #4
    GWH
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    That'll work.

    I never do that tho. I simply enter all the relavant info into a ballistic app on my phone, enter the bc and an estimated velocity (if you don't have actual)

    That will give you the drop/dial up data for various distances which will be close.

    Then shoot said distances and note the actual correction you need to hit centre compared to what the ballistic solution was from the app.

    After shooting at 3 various distances then make adjustments to bc and velocity until the app solution matches your actual recorded data from shooting.

    This process is called ballistic trueing.
    Tangobravo likes this.

  5. #5
    Unapologetic gun slut dannyb's Avatar
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    I used a ballistic app with my chrono speed and load specs then shot at 100yds and 200yds to confirm, you can fiddle the projectile specs if the app doesn't match your results.

  6. #6
    Member Marty Henry's Avatar
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    I run a ballistic app but shoot a verification string keeping zero and measure. I can go out to 500 at home which is plenty. I do this for all new loads as ballistic apps arent entirely reliable.

 

 

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