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Thread: 223 factory ammo speeds

  1. #1

    223 factory ammo speeds

    I had a chrony to hand yesterday and checked a few rifles.
    My sons 223 Remmy with quite new 20" sporter barrel produced the following. Only two shots of each. (ammo is scarce here)
    American Eagle 50gr HP 3111 3172fps
    Hornady Spire 55gr (SP) 3047-3050
    Fiocchi 50gr V-Max 2939-2956

    Astonishing how much they differ.

    Would any one know whereabouts the speed should be for a 22cal BSA Meteor springer ? I measured 491 - 506 fps with mine.
    edi

  2. #2
    What was the pellet weight you were shooting?
    For Gods sake - don't tell her how much I've spent

    Ctrl-Alt FACT

  3. #3
    Just checked, wasp No.3 5.5mm somewhere I found 14.4gr
    edi

  4. #4
    Quote Originally Posted by ejg View Post
    Just checked, wasp No.3 5.5mm somewhere I found 14.4gr
    edi
    580FPS would be ideal @10.75ft/lb for that weight pellet

  5. #5
    Concur with the above - there or thereabouts...

    Click image for larger version. 

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    For Gods sake - don't tell her how much I've spent

    Ctrl-Alt FACT

  6. #6
    Did Meteors ever get near 10.75ftlb?

    Having chronographed a fair bit of factory ammunition out of curiosity before I started to reload, I'm not sure the differences between the factory loads are particularly surprising, though.
    Are the observed differences in proportion to the differences in the manufacturer's data for those loads?

  7. #7
    Quote Originally Posted by Dalua View Post
    Did Meteors ever get near 10.75ftlb?
    I would think if they are tightly grouping at 8ft/lb then it doesn't matter. Some people think speed and energy is everything.

  8. #8
    Quote Originally Posted by Dalua View Post
    Did Meteors ever get near 10.75ftlb?

    Having chronographed a fair bit of factory ammunition out of curiosity before I started to reload, I'm not sure the differences between the factory loads are particularly surprising, though.
    Are the observed differences in proportion to the differences in the manufacturer's data for those loads?
    I would have thought the 50gr Fiocchi would be a bit quicker than the 55gr Hornady. Fiocchi say 3300fps and Hornady 3240fps for the 55sp
    The Fiocchi have taken many fox in this area as they seem very accurate out of a several rifles.

    The air rifle seems to be fairly healthy then I take it. Is an old rusty thing but very useful at times.
    edi

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