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Thread: Not having success with 260 Rem

  1. #21
    Boolit Master


    Larry Gibson's Avatar
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    Jul 2005
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    Lake Havasu City, Arizona
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    16,559
    "I think the twist rate is the killer."

    That would be correct. The "odd flyers" are the result of the bullet exceeding it's RPM Threshold. The first load at 1515 fps is running 136,350 rpm....The heavier loads are obviously pushing the RPM over 140,000......
    Last edited by Larry Gibson; 10-08-2018 at 10:49 AM.
    Larry Gibson

    “Deficient observation is merely a form of ignorance and responsible for the many morbid notions and foolish ideas prevailing.”
    ― Nikola Tesla

  2. #22
    Boolit Master

    Rcmaveric's Avatar
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    Jul 2017
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    Jacksonville, FL
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    The 17.6g of Reloader seven was 1690 Avg FPS. I figured it was close to being over rpmd.

    There are a few variables I need to illuminate though. Like sorted brass and double check neck tension. Try and rule out some posibilities.

    Sent from my SM-G950U using Tapatalk
    "Speak softly and carry a big stick; you will go far."
    ~Theodore Roosevelt~

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check