Rimfire accuracy: long barrel vs shorter barrel | Carolina Shooters Club

Rimfire accuracy: long barrel vs shorter barrel

Discussion in 'Rimfire Forum' started by Robin Fowler, Apr 7, 2021.

  1. Robin Fowler

    Robin Fowler Registered Member

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    So I had a conversation with a guy at the gun shop about rimfire rifles. He said the longer 24” barrel is/can be less accurate than a 20” barrel (I was talking about CZ-USA models). His reason is that a .22LR powder is already burned and the extra barrel length is unnecessary in a .22. Also, a longer barrel can affect accuracy if you wander off the target just bf your shot. That is, the longer barrel accentuates the “wander” by the extra length. And the added length adds to friction on the bullet. Of course, we are talking about four inches; is this really a “thing?” Discuss.
     
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  2. rhodney

    rhodney Hall of Shame

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    Actually yes a longer barrel doesn't mean more accuracy it really depends on caliber twist rate harmonics but I'm sure there is a formula
     
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  3. Bailey Boat

    Bailey Boat Club Subscribed Club Subscribed

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    20" seems to be the ideal, 24" begs to be cut.....
     
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  4. Robin Fowler

    Robin Fowler Registered Member

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    ok, thanks guys!
     
  5. 42dcnf

    42dcnf Registered Member

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    Theoretically, a shorter barrel will be stiffer, resulting in better accuracy.

    But there are no guarantees; each rifle has its own behavior.
     
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  6. 5.6x15R

    5.6x15R Registered Member

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  7. joelpend

    joelpend Registered Member

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    I do not agree. Every rifle is different but longer rimfire barrels are NOT inherently less accurate. The lower pressure as the bullet exists the muzzle can be a good thing. I tell folks if their rimfire is shooting really good to never shorten the barrel because you do not know what that might do to accuracy. Harmonics are alway effected when you change the length and weight of a barrel.
     
  8. DaBoogsterNC

    DaBoogsterNC Registered Member

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    I agree with Joel, a good long barrel can be as accurate or better or worse than a short barrel. Many say it is critical the barrel bore is tighter at the muzzle for best accuracy.
    Many things make for a good 22 rimfire barrel. In my humble opinion, barrel length (within reason) is not one of them.
     
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  9. Robin Fowler

    Robin Fowler Registered Member

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    ah! the plot thickens!
    maybe i will go to the horse’s mouth and ask CZ. or Anschutz.
     

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