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Thread: Bore size on ar9 carbine barrels

  1. #1
    Boolit Buddy
    Join Date
    Dec 2016
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    Louisiana
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    Bore size on ar9 carbine barrels

    I spent the day today slugging the bore's on 7 AR9 carbine barrel. This was done to see what it really was .354 to .3543 this explains why bullets sized .355 shoot so well in my carbines. Is this common or am I the odd man out.

  2. #2
    Boolit Buddy
    Join Date
    May 2016
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    458
    I have not slugged mine, but I have been sizing to .356 and I have had no leading...yet

  3. #3
    Boolit Master
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    Dec 2010
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    Wilson AR9??
    "Don't worry what they think. In the end it is not between them and you, it is between you and God."

    Je suis Charlie!


    "You won't know until you Actually try it"

    "The impossible just takes longer."

    "Don't let them beat you down with their inexperience."

    "You'll never accomplish what you don't try. " - Moldmaker

  4. #4
    Boolit Buddy
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    No, spinta precision,classic arms,ballistic advantage, and some unknown's.

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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