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Thread: 180 sst in 308

  1. #1
    Member Pengy's Avatar
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    180 sst in 308

    Under the watchfull eye of @Shearer and @mikee, I had a first proper go at reloading for my 308 a while ago.
    Having already tried a couple of 180 sst and my rifle seeming to like them, that's what I went with, as it is a bush gun so distance shooting not an issue
    I finally got round to putting a few across the chronograph today .Thanks VC.
    Results were mixed on the speed front, but accuracy wise, I am happy
    Name:  P1010296.jpg
Views: 260
Size:  802.0 KB

    8 shot group with speeds as follows;
    2359
    2409 (sticky bolt)
    2327
    2030
    2336
    plus x3 shots unrecorded, maybe due to sunstrike on chrono?
    Forgotmaboltagain

  2. #2
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    @Pengy
    you are a better than @kiwigreg he never hits the bulls eye
    veitnamcam, Pengy and Skatieguy like this.

  3. #3
    Member Pengy's Avatar
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    Quote Originally Posted by 6mm ackley View Post
    @Pengy
    you are a better than @kiwigreg he never hits the bulls eye
    Haha. He shoots a lot further than me though
    Forgotmaboltagain

  4. #4
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    Down, down, down the rabbit hole he goes. Soon all we shall see on him is the tips on his flippers
    gadgetman likes this.

  5. #5
    Member Pengy's Avatar
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    WTF?
    Forgotmaboltagain

  6. #6
    Member deepsouthaussie's Avatar
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    Sounds like a potential chrony issue? I'd expect closer figures with that sort of grouping.

    Sent from my ALE-L02 using Tapatalk

  7. #7
    Ex stick thrower madjon_'s Avatar
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    Quote Originally Posted by deepsouthaussie View Post
    Sounds like a potential chrony issue? I'd expect closer figures with that sort of grouping.

    Sent from my ALE-L02 using Tapatalk
    Cloudy on and off here today?
    veitnamcam likes this.
    Sako Rifles,Browning shotguns,Black Labs.There is nothing else

    The dog always bites,The horse always kicks,The gun is always loaded.


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  8. #8
    MIA somewhere in Nam 300CALMAN's Avatar
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    Velocities are a bit inconsistent but probably right for a short barrel and heavy bullets. with a 19" barrel I get 2700 with 150 grain SST's and 45 grains of 2208.

  9. #9
    Member Pengy's Avatar
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    I just weighed the remaining rounds from that loading session (my first) and there are inconsistent weights both + and -, so it is most likely down to my lack of skills rather than chrony

    I should mention that I was not shooting for accuracy, just wanted to get the speed to load into strelok. The grouping was kind of accidental
    Last edited by Pengy; 05-11-2016 at 06:57 PM.
    Forgotmaboltagain

  10. #10
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by Pengy View Post
    I just weighed the remaining rounds from that loading session (my first) and there are inconsistent weights both + and -, so it is most likely down to my lack of skills rather than chrony

    I should mention that I was not shooting for accuracy, just wanted to get the speed to load into strelok. The grouping was kind of accidental
    The F1 is very fussy how it is set up if accurate velocities are the goal.

    Firstly it must be fully opened, secondly it must be as accurately as possible aligned with the bullet path in both planes and lastly it must have consistent lighting, I have found it to vary up to 150fps with cloud disappearing and sunlight hitting it.

    As long as you are aware of it and have a known load to shoot over it to compare it is ok but it is still only an indication.

    Big variance can also be caused by setting it too close in the blast, 4-5meters plus seems to be ok.
    Pengy and Shearer like this.
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  11. #11
    Almost literate. veitnamcam's Avatar
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    Double grouping was two mags full ?IE shoot, break position then shoot again?
    Rule 3: Load a firearm only when ready to fire

    Chicken Intolerant.

  12. #12
    Member Pengy's Avatar
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    Chrono was min of 5 mts from muzzle, and I ended up shading it with a sheet of cardboard as the cloud cover was sporadic. It was fully opened and on a level surface, shooting pretty much parallel to the horizontal and through centre of the chrono ( if that makes sense)
    All shots taken from same position with cooling period between shots.
    7mmsaum, veitnamcam and Shearer like this.
    Forgotmaboltagain

  13. #13
    Member Feral's Avatar
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    Yep, the F1 I use is also fussy. Distance from muzzle blast is a key.

    Sent from my GT-I9505 using Tapatalk

  14. #14
    Member mikee's Avatar
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    Quote Originally Posted by Pengy View Post
    Under the watchfull eye of @Shearer and @mikee, I had a first proper go at reloading for my 308 a while ago.
    Having already tried a couple of 180 sst and my rifle seeming to like them, that's what I went with, as it is a bush gun so distance shooting not an issue
    I finally got round to putting a few across the chronograph today .Thanks VC.
    Results were mixed on the speed front, but accuracy wise, I am happy
    Attachment 58436

    8 shot group with speeds as follows;
    2359
    2409 (sticky bolt)
    2327
    2030
    2336
    plus x3 shots unrecorded, maybe due to sunstrike on chrono?
    Name:  pengy 2.jpg
Views: 107
Size:  45.8 KB
    Not bad at all @Pengy for a 308 eh
    gadgetman and Pengy like this.
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  15. #15
    Member Pengy's Avatar
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    Nobody questioned the shooting distance yet
    veitnamcam and gadgetman like this.
    Forgotmaboltagain

 

 

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