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Thread: sako factory load data ???

  1. #1

    sako factory load data ???

    hi all, does anyone know the spec "ie powder type/weight" for sako rounds ?, there 25/06 cal 117grs gamehead sierra, reason being is im getting respectable groups with them on the whole but get the odd flyer so wondered if i was to use there data but as a more accurate hand load if things would improve any.
    thanks
    jimmy

  2. #2
    Quote Originally Posted by jimmy milnes View Post
    hi all, does anyone know the spec "ie powder type/weight" for sako rounds ?, there 25/06 cal 117grs gamehead sierra, reason being is im getting respectable groups with them on the whole but get the odd flyer so wondered if i was to use there data but as a more accurate hand load if things would improve any.
    thanks
    jimmy
    Unlikely you'll be able to replicate factory loads as they don't use powder in the same way a homeloader does.
    Better off using a bullet of the same weight and profile and working up a load. You should be able to match or beat the performance of a factory round if you put the time in.

    P.S. what makes you think they're sierra bullets? They're more likely to be lapua I would have thought.

  3. #3
    jimmy sako have some of the tightest tolerances of any factory stuff and have won loads of benchrest stuff with ppc's etc. so if your getting flyers i would say the load might not be quite right for your gun or pilot error mate.
    as said start from scratch and work up
    H414(light bullets) and H4831sc(heavier bullets) always worked well in my .25

  4. #4
    I'm inclined to agree the bullets in the Sako ammo are less likely to be of USA origin, but I guess it's not impossible.

    I've not found bullets greater in weight than 110gns much good in my rifle and 120gn bullets appalling.
    I put that down to the 1-10 twist and a failure to have found a load that will stabilise bullets heavier than 110gns.

    The best bullet performance I have found in my rifle is from the Sierra Prohunter 100gn #1620. I use IMR 4350 &
    H 4350 propellants with Rem. 9 1/2 primers
    Last edited by deeangeo; 14-04-2012 at 21:40.
    Blaser K95 Luxus Kipplaufbüchse .25-06Rem. Zeiss 8x56, 110gn Nosler Accubond = Game Over!

  5. #5
    100 gr nosler bt
    49 grains h4380
    cci long rifle primers
    mine didnt like the 110 gr either
    in my sako 75 hole in hole they hit hard and dont always exit as speed below 2000 fps

  6. #6
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    Sako used to print all of their cartridge loads in the older Sako and Tikka gun brochures on the Sako ammunition page. They used Viht powders and gave the powder no. and weight for each cartridge. Try and get hold of a 3-4 year old brochure and the data will be there.

  7. #7
    Quote Originally Posted by Brian243 View Post
    Sako used to print all of their cartridge loads in the older Sako and Tikka gun brochures on the Sako ammunition page. They used Viht powders and gave the powder no. and weight for each cartridge. Try and get hold of a 3-4 year old brochure and the data will be there.
    you are right and i might have 1

  8. #8
    If it has 6.5 x 55 on the sheet, any chance you could ping me a copy please.


    Just starting to reload and my Sako loves the 120 grn norma, talking to a very experiencd loader over the weekend and he only uses 100grn BT in his 6.5 , Big learning curve coming methinks
    Thanks
    Phil

  9. #9
    Quote Originally Posted by Brian243 View Post
    Sako used to print all of their cartridge loads in the older Sako and Tikka gun brochures on the Sako ammunition page. They used Viht powders and gave the powder no. and weight for each cartridge. Try and get hold of a 3-4 year old brochure and the data will be there.
    A succinct post at last!

    The catalogue shows sako 117gn bullets are charged with 45.5gns of N160. Looking on the viht reloading guide, this is right on the maximum - so be careful.

  10. #10
    Sorry to contradict Brian243 on his post, but the loading data given at the back of Sako catalogues for many years, and reproduced on the link below isn't necessarily the recipe for Sako cartridges.

    http://www.sako.fi/pdf/datatables/Sa...atable2012.pdf

    I've taken quite a few Sako and Norma cartridges apart. As far as I can determine, quite often the powders in Sako rounds are bulk lots of Norma proprietary powders such as N201, N202, and N204. Norma powders are quite distinctive, with coloured flecks, and irregular 'stick' lengths. I have some of these on my shelf. They aren't the same visually to Vihtavuouri, so it's not difficult to distinguish what brand might be in a particular lot but it's a best guess only.

    Some aren't 'Norma type' powders, but that doesn't mean Vihtavuouri powders have been substituted. Often the charge-weights don't correspond to the Sako datatables either. Bofors powders are available in Scandinavia, so they're another possibility.

    There isn't any claim from Sako that the loadings they print are what they actually use in their own cartridges. The SAKO data is only a loading guide for VIHT powders, and should be treated as such IMO.
    If I'm going to be accused of it then it's just as well I did it.

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