Optimum Barrel Length for .22LR

Discussion in 'Rimfire & Smallbore' started by Iggyort, Sep 10, 2019.

  1. Iggyort

    Iggyort

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    On another thread, a discussion of the " Optimum Barrel " length for the Vodoo Rifle Actions got me thinking.

    My Anshutz 54 Match Prone Rifle has a 26" barrel. Why then , would Anshutz provide such a long barrel if it did not improve the accuracy of the rifle.

    Below my rifle and the video in question :
    20190908_092417.jpg
     
  2. garandman

    garandman Bolt Gun Bodacious Gold $$ Contributor

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    As I recall the Vudoo video on barrel length actually talks about velocity more than accuracy. That all the powder is usually burned up by about 20"


    I suspect there is a point of diminishing accuracy returns with barrel length so I went with 20" on my Vudoo. Once the powder is burned up, extra barrel length is going to decrease velocity at the muzzle.
     
  3. Hi-NV Shooter

    Hi-NV Shooter

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    Your Anschutz originally was intended to be shot with open/iron sights longer barrel gave a longer sight radius. the older match 54 had 27-1/4" barrels

    Lee
     
  4. fantastic

    fantastic

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    its generally safe to say 16" is a good length for a 22lr barrel.
     
  5. Iggyort

    Iggyort

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    Agreed, but competitors competing in Biathlon and Olympic rifle disciplines have rifles that exceed 20".
    So the question is :

    Is the increased sight radius that much of a advantage over increased velocity in those disciplines?

    Olympic Postional Indoor Shooting with no wind . Absolutely.

    Biathlon shoots Outdoors at 50 M ( 54 Yards ) at targets 4.5" and 1.5".
    Once again , the sight radius wins.
     
  6. garandman

    garandman Bolt Gun Bodacious Gold $$ Contributor

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    According to the video, 20" maxxes out 22rf velocity.

    Far as sight radius... longer is better. Ideally, you want a sight radius that goes from your eye to 1" from the target. :)

    But the ideal is kinda impractical so most iron sight rifle manufacturers stopped about 26 to 28"
     
  7. Hi-NV Shooter

    Hi-NV Shooter

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    By what means is this conclusion made? most gunsmiths who would put a .22lr barrel on an action will slug the barrel for optimum crown placement, which could be at any length.

    Lee
     
  8. Larryh128

    Larryh128

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    Should be more accurate, you're 6" closer to the target. LOL
     
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  9. bennett ford

    bennett ford

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    If you were to look at a lot of the more modern 22LR match (3P) rifles, you would find that they have fairly short barrels with sight extensions (bloop tubes) attached. By using a 16 to 20 inch barrel, you maximize velocity and minimize barrel time. This leads to more accurate shooting in the less stable positions. the difference is small but so are the targets. Unless balance or looks are an issue, a short barreled scoped 22LR makes the most sense for PRS type shooting. That said, the 27.5"barrel on my 52D speaks of a real rifle to me.
     
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  10. Iggyort

    Iggyort

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    For PRS style shooting it makes perfect sense.

    However, for Smallbore F Class shooting like I do, 20" to 21 might be the ideal length.
     
  11. natdscott

    natdscott P100, HM, DR, experienced beginner. Gold $$ Contributor

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    No, not really.
     
  12. garandman

    garandman Bolt Gun Bodacious Gold $$ Contributor

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    The correct barrel length is determined by whether yer gonna run a suppressor, or not. :) :p:cool:;)
     
  13. garandman

    garandman Bolt Gun Bodacious Gold $$ Contributor

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    Did I mention....REALLY nice Anschutz...??? :)
     
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  14. Iggyort

    Iggyort

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    20190907_150115.jpg

    Thank you.
    Yes an Anshutz made in 1971. It can still hold its own in Smallbore F Class.

    20190907_150115.jpg 20190907_125442.jpg
     
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  15. redrockranger

    redrockranger

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    I place my trust and money on ANSCHUTZ.......
     
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  16. brshtr

    brshtr Silver $$ Contributor

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    Ahh, a man after my own heart. I have an Anschutz 1913 that I use both for sling and F-Class, and, like yours, it holds its own in the latter. It was made—as was yours, I’m sure— in a place called West Germany.

    Is that a Rick Copozzi windmill I see there? Great piece of equipment.

    If you’re ever in the neighborhood, come over and shoot with us at River Bend Gun Club, Dawsonville, Ga.

    Dave Rabin
     
  17. Paddyd

    Paddyd

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    I think it is so they can compete @ 100 yds and maintain enough velocity for the bullet to remain at or above the speed of sound. Projectiles suffer from instability as they transfer to subsonic velocities. As for accuracy. I think the longer the barrel the higher quality it needs to be to remain consistent. I have a home built semi auto 10/22 with a 20" Volquartsen .920" dia barrel that will shoot cheap Norma TAC22 well under 1/2" groups @ 50 yds and still be 1/2", but have 1 or 2 fliers @ 75. At 100 it is over an inch. If it were a bolt rifle with that barrel I think it would do better.
    20" does it for me.
     
  18. Iggyort

    Iggyort

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    Dave

    Thank you for the invite.

    Yes, it is a Rick Copozzi windmill. He is currently recovering from surgery and will not be making anymore for a while .

    20190404_225752.jpg
     
  19. Tim s

    Tim s

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    Iggy, I doubt many would argue that relative to pure accuracy in todays rimfire world nothing really exceeds a pro built custom benchrest rifle made from purpose built components, action, stock, trigger, barrel, tuner.
    That said rather than weight restricted sporters, you will rarely, if ever, see a recently fit barrel shorter than 24”, most going between 24”-26”.
     
  20. 1813benny

    1813benny

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    I thought federal law requires a minimum barrel length of 17 inches....
     

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