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Is this safe

Discussion in 'Rifle Country' started by jbech123, Dec 28, 2009.

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  1. jbech123

    jbech123 Member

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  2. scythefwd

    scythefwd Member

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    I can get you load data that is 2543 fps and 4k psi under max SAAMI pressures. They are just pushing it a little bit faster, and probably still 2.5k psi under max pressures. Corbon has access to powders that home reloaders don't and it is possible they are easily below max pressures.

    44.5 gr o BL-C(2)
    190 gr jacketed bullet
    2543 fps
    58065 psi (max is 62000)
     
  3. W.E.G.

    W.E.G. Member

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    Test it before you jump to any conclusions.

    Its not the "best" load unless it shoots best in your rifle.
     
  4. scythefwd

    scythefwd Member

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    +1 w.e.g.
     
  5. R.W.Dale

    R.W.Dale Member

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    manufacturers also have a bad habit of either overestimating velocities or using overly long test barrels
     
  6. scythefwd

    scythefwd Member

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    Krochus - Wait.. you're telling me all of your rifles don't have a 26" barrel:D
     
  7. USSR

    USSR Member

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    The hands-down best powder for heavy bullets in the .308 is VihtaVouri N550.

    Hornady Match brass
    190gr Sierra MatchKing
    Fed 210M primer
    47.0gr N550
    2.840" OAL

    I get 2700fps out of my 26" barreled FN SPR. Quick Load says that this load remains within SAAMI pressure specs up to 47.5gr. Great long range load.

    Don
     
  8. dubbleA

    dubbleA Member

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    USSR

    What barrel are you running on your SPR as I am not aware they are available with a factory 26" tube?
     
  9. USSR

    USSR Member

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    My FN SPR is a 1st Generation model. They only made about 650 of them, before moving the manufacturing from Winchester's New Haven, Conn. plant to the new South Carolina FN plant. Barrel is just like the 2nd Gen. models (chrome-lined), only 26" long.

    Don
     
  10. Jim Watson

    Jim Watson Member

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    How is that chrome lined barrel doing for accuracy?
    Friend of mine is crying as his stainless barrel's accuracy deteriorates.
    I know the conventional wisdom is that a chrome lined barrel will not be as accurate as naked steel because of the added processing and combined tolerances, but we can hope. If it is good enough, it seems a natural for F-TR; plenty of practice without having to change out barrels every year or so.
     
  11. jbech123

    jbech123 Member

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    of course, I just meant best external ballistics. hopefully my 5r with 11.25 twist will shoot shoot these heavy bullets well, but paper doesn't lie so the only way to know is to lob some downrange.
     
  12. USSR

    USSR Member

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    Jim,

    FN has a proprietary method of applying the chrome. While it is true with most chrome-lined barrels, that you give up some accuracy, I have not found it to be true with the FN SPR's. I took great pleasure this year in beating guys with GAP-built sticks.

    Yep. With an estimated barrel life of 15,000 rounds, what's not to like?:)

    Don
     
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