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  • 2 Post By 300LRH
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  • 3 Post By winaa
  • 1 Post By 300LRH

Thread: Optimal Barrel Time (OBT) - anyone else use it?

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  1. 04-11-2020, 07:47 AM #7
    winaa
    winaa is offline
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    Join Date
    Apr 2016
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    Rotorua
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    475
    Sort of worked for me with my old rifle that had a 24" barrel and no suppressor (i.e got within .4 of a grain or so).
    With my new Tikka and a 20" barrel and suppressor I can't even get close. As with Noswai I found the speed at each nod to be either to slow or over pressure.
    Now I just work up a load with a low SD, then adjust the seating depth to get the accuracy
    Tikka7mm08, Noswal and Roarless20 like this.
    BC doesn't matter, until you need to dial
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