Any of you measure rim thickness for .22 consistency?

Discussion in 'Rimfire Forum' started by jhertzler, Sep 22, 2018.

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  1. jhertzler

    jhertzler

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    I am wondering about how much this is an influence on accuracy of .22 and what you guys think of it. Do you sort by rim thickness? What to you use to measure it? Is it worthwhile?
     
  2. Current Resident

    Current Resident

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    I've never done it. I tend to shoot better ammo when I'm bench shooting.
     

  3. NoStress

    NoStress

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  4. Geeorge

    Geeorge Sarcasm Inc.

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  5. Geeorge

    Geeorge Sarcasm Inc.

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  6. rds95991

    rds95991 NRA Benefactor

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    Since the rim houses the primer, unless it affects the volume of the case I'm not really sure how it would affect accuracy other than perhaps the strength of the ignition of the powder based on the amount and sequence of the primer as it gets ignited.

    I know Eley is very proud of the way it primes its cases and the consistency of the amount and the distribution of the priming compound.

    Rather loading it as a paste, they load it as a powder and then add water to make it a paste.
     
    Last edited: Sep 23, 2018
  7. flyover

    flyover

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    Match shooters used to measure rim thickness but I don't know if they still do.

    I tried doing it but found that there was not enough variance to make a difference in my shooting. Maybe quality control is better now.
     
  8. tjpet

    tjpet

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    I've measured rim thickness on walmart bulk ammo. Segregated batches shot consistantly better. For hunting/plinking no big deal. For matches, yes.
     
  9. Alabusa

    Alabusa

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    Rim thickness is not as important as the length from the top of rim to the ogive of the bullet.

    Sent from my SAMSUNG-SM-G935A using Tapatalk
     
  10. Bill Keith

    Bill Keith

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    I have done it in the past with CCI Blazer 22LR and it only made a small difference that really wasn't worth the time to do all the measuring. I do shoot a lot of CCI Blazer 22 LR ammo but when shooting for accuracy I shoot Federal 711B (Federal Gold Medal Target) ammo, it seems to be more accurate in my various 22 firearms. I pretty much shoot 40 grain 22 ammo.