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  1. #21
    User
    Join Date
    Apr 2019
    Location
    Cape Town
    Posts
    568

    Default Re: CZ 452 .22LR - most accurate ammunition?

    I have found that precision varies a lot depending on barrel, even from the same model of rifle. There is no one good cartridge per model. The only way is to test every cartridge you can buy. A friend's old Bruno can shoot extremely well with Eley Sport, yet my Anschutz Match 54 suck with the same ammo. My Anshutz worked well with RWS Match, but another club member's Anshutz did not.

  2. #22
    User
    Join Date
    Aug 2012
    Location
    Stella
    Age
    42
    Posts
    9,760

    Default Re: CZ 452 .22LR - most accurate ammunition?

    From what I have read and learnt- both here and in private discussions - is that most folks get at least reasonable to good accuracy with standard velocity ammunition. That helps because it is a starting point and rules out sub sonic and HV's for a start. If this does not work, we would have to start down the long road.

  3. #23
    User
    Join Date
    Jul 2011
    Location
    Centurion
    Posts
    83

    Default Re: CZ 452 .22LR - most accurate ammunition?

    Hi guys, I bought some SK in bulk when it was on sale. Accuracy was okay-ish. Was bored and decided to sort them by weight - was quite shocked in the variation. In one box there was total variation in 1.1 grain (ES). Will try the sorted ammo out as soon as lockdown is over might be promising - time will tell :)

  4. #24

    Default Re: CZ 452 .22LR - most accurate ammunition?

    My 455, gives me 1 hole groups at 50m (if I do my bit) with:

    1. Lapua HV, in the gold box. Being HV, it also extends my useful accurate range if I need too. (Very Very pricey)
    2. SK Standard Plus, Black Box with Yellow labels. (Excellent pricing, normal price from S&O, R85 per 50, but could go down to R65 on 1 of their specials, pre Wuhan flu, that is)
    3. CCI SV 40gn Target. (Not regularly available)

    I'v kind of standardized on the SK as it is way cheaper than the Lapua and I was able to get a lot from Safari and Outdoor.

  5. #25
    User
    Join Date
    Dec 2010
    Location
    Boland
    Posts
    6,776

    Default

    Quote Originally Posted by Ds J View Post
    From what I have read and learnt- both here and in private discussions - is that most folks get at least reasonable to good accuracy with standard velocity ammunition. That helps because it is a starting point and rules out sub sonic and HV's for a start. If this does not work, we would have to start down the long road.
    Don't rule out the physics of the matter (.22s are't all magic and angeldust!)
    Measure what the barrel's twist rate is, and just make sure that it'll stabilise 40gr bullets at the chosen speeds. Standard for .22 is 1:16, for some reason lost to a designer or a workshop operator in Bloemfontein my Musgrave's twist is 1:17... this leads to marginal stability with 40gr bullets (and frustrating lack of accuracy - which at least is "less bad to almost usable" with some HV loads) while it shoots well with (slightly shorter) 36gr bullets and gives really good results when 36gr HV is used. Running the numbers it's obvious that the latter is well stabilized.

    Also, subsonics "should" generally shoot more accurately if they stabilise well, because they don't have to deal with a transonic transition like standards may have to do.

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