1. Get Gear'd Up! Enter to WIN $1000 in gear!

    Please Click Here for full details and to enter. You will need to be registered and logged in to view the details and to participate.

    Thanks and good luck to everyone

finding twist rate?

Discussion in 'The Ammo & Reloading Forum' started by me2, Feb 24, 2010.

  1. me2

    me2 New Member

    Joined:
    Feb 23, 2010
    Messages:
    21
    Hi yall got a question. how do you tell what the twist rate is on a gun barrel? i have a nef 223 single shot and i cant find any stampings on it to say.. i want to reload some for it but am looking at different size lead vs the twist rate. thanks for the help..

    PS: great board here, i was up till 11pm last night reading here and back again today LOL :) :cool:
  2. Alpo

    Alpo Well-Known Member

    Joined:
    Feb 3, 2007
    Messages:
    11,641
    Location:
    NW Florida
    There's three ways.

    Many reloading manuals have a table with the twist rate of various guns in it.

    You could call the company and ask them.

    Or, you could measure. Take a cleaning rod with a tight-fitting patch. Push it into the barrel a couple of inches. Mark the rod with a Sharpie (or something similar) at some type of index mark (the front sight works real good for that), horizontally at the muzzle. Draw a vertical line up the rod for maybe twenty inches (to be safe), in line with the index mark. Now, push the rod down the barrel. The tight patch will follow the rifling, the rod will turn. When the rod makes one complete circuit, which you will know because your vertical line is now at the index mark again, make another horizontal mark at the muzzle. Remove the rod and measure the distance between the two horizontal marks. The distance between the marks is one complete turn, so - one turn in 8 inches, or one turn in 15 inches, or whatever. There's your twist. I suggest you make your vertical line about 20 inches, because most smokeless cartridges have a twist faster than 1-in-20.
  3. artabr

    artabr New Member

    Joined:
    Mar 3, 2008
    Messages:
    7,859
    Location:
    New Iberia, Louisiana
  4. deadin

    deadin Well-Known Member

    Joined:
    May 16, 2006
    Messages:
    1,136
    No kidding!! He makes it absolutely anal.:D

    I wonder how he would handle a gain twist?;)
  5. cakes

    cakes New Member

    Joined:
    Oct 23, 2009
    Messages:
    230
    Location:
    Northern Maine
    OR... You can shoot a few bullets of varying weight, and see which your rifle prefers.
  6. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,271
    Location:
    Heart Of Texas
    heres a link to a barrel twist calculator. It finds the particular twist needed to properly stabilize a particular bullet...http://kwk.us/twist.html

    The easiest way to determine the twist in yor particular firearm barrel is as described by alpo in the second post of this thread... the ol cleaning rod method...
  7. me2

    me2 New Member

    Joined:
    Feb 23, 2010
    Messages:
    21
    Thanks Yall for all the help !!! :D
  8. AL MOUNT

    AL MOUNT Active Member

    Joined:
    Oct 9, 2006
    Messages:
    3,321
    Location:
    Cleaning my Thompson in The Foothills of the Ozark
    That's what I love about this forum..... :D


    An excellent question followed by excellent answers.... :)
  9. me2

    me2 New Member

    Joined:
    Feb 23, 2010
    Messages:
    21
    i dont know about excellent Question but defenitly excellent answers LOL
Similar Threads
Forum Title Date
The Ammo & Reloading Forum Some help finding stuff. Mar 22, 2014
The Ammo & Reloading Forum Interesting finding on 9mm NATO brass Oct 8, 2013
The Ammo & Reloading Forum Finding the accurate load for my AR-15 Nov 18, 2012
The Ammo & Reloading Forum trouble finding load data Oct 14, 2012
The Ammo & Reloading Forum I need help finding data for 800-x Jul 17, 2012

Share This Page