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Thread: barrel twist

  1. 03-06-2007, 01:44 AM #1
    A Nimrod
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    barrel twist

    I know this has been asked before but I can not find it in the search section.
    How do you determin a barrel twist rate ?
    TIA A Nimrod
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  2. 03-09-2007, 09:28 AM #2
    Buckshot
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    ...............Run a lubed tightly patched rod down the barrel to the breech. WIth a Sharpie or similer marker draw a circle around the rod at the muzzle and then a straight line for an inch out from the muzzle on the rod. Now pull the rod out of the barrel and mark a circle 24" down toward the jag end from your mark on the rod at the muzzle.

    Run the rod back in so your back where you were before with the straight line striaght up on the rod. Now slowly pull the rod out and stop when the bottom circle appears at the muzzle. Look at the straight line's position on the rod. If it is now on the bottom of the rod, you have a 48" twist. Ie: 1/2 turn in 24 = one full turn in 48". Or you can figure 1/4 turn per foot and go from there for whatever you end up with.

    ...................Buckshot
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  3. 03-09-2007, 03:41 PM #3
    ARKANSAS PACKRAT
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    ............A varistion...........same tight patch rod setup, mark a spot on the barrel and rod, draw a line on the rod streight out Push the rod in, when the line comes around to your barrel mark, mark the rod, pull it out and measure the distance between the marks. Measurement is twist in inches, no figuring needed.
    Nick
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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