How often does your SD change?

Discussion in 'Competition Forum (All Calibers)' started by BenPerfected, Jan 14, 2019.

  1. BenPerfected

    BenPerfected Gold $$ Contributor

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    My SD erodes in my 6 Dasher barrels about .001 every 75 rounds. I’m now checking my SD every 200 rounds....one more mouse turd to trip over.
    Ben
     
  2. steve_podleski

    steve_podleski

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    do you have a record of the changes? Is it changing less and less with more rounds?
     
  3. Warren Dean

    Warren Dean Team Savage

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    So in 7500 rounds, your SD will change .1 fps. That's less than a rounding error in chronograph data. Go practice. :p
     
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  4. newbieshooter

    newbieshooter :-) Silver $$ Contributor

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    Oh, I took SD to mean Seating Depth....
     
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  5. kvd

    kvd Silver $$ Contributor

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    He does mean seating depth - not standard deviation.
     
  6. Northridge

    Northridge

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    newbieshooter I think your on the correct wave length Lol. if not I'm on planet mars with you.

    Shawn Williams
     
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  7. Warren Dean

    Warren Dean Team Savage

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    LOL...An F Classer misreading bench rest lingo....disregard, please. :p
     
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  8. SPJ

    SPJ Silver $$ Contributor

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    That sounds like a lot of erosion.
    Is that normal for a Dasher?
     
  9. JohnKielly

    JohnKielly Australia, not Austria Silver $$ Contributor

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    The question is, "can you measure this consistently?"
     
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