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Thread: Sierras new Game changer bullets

  1. #46
    Member Dreamer's Avatar
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    I've managed to get them to shoot ok 1'' or less in a standard .243 barrel (1-10" Tikka). Did have to change powder from the ever reliable 2209 in the .243 to N160 but its done the job.
    Mooseman likes this.
    "O what a day, what a lovely day"

  2. #47
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    That's good to hear @Dreamer. Have you had the chance to test accuracy at longer range? Like 300m? 400m? Its possible that a marginally stable bullet (which this is) could start to miss behave quite badly as it slows down, pitching and yawing and increasingly drag. There is a video out there somewhere of the results of this with one of the Bergers shot from a barrel with a marginal twist rate. Good 100m accuracy but really shit down range. It might not matter if you are not planning on shooting stuff at close range though.
    Just...say...the...word

  3. #48
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    @Flyblown shot this group at 400yds this morning bare in mind I haven’t got the rifle sighted in for these and should have used my bigger plate but the first shot hit top left corner then the 2 to the right at the top so they seem to stabilise fine for me.



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    "O what a day, what a lovely day"

  4. #49
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    That's excellent. So it does appear true, what the Sierra technician said, some 1:10" barrels will, some won't.

    This is one of the best results I've seen on the web for the 90gr 6mm bullet.

    Bloody good advert for Tikkas as well.
    Last edited by Flyblown; 30-04-2019 at 01:54 PM.
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  5. #50
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    Quote Originally Posted by Flyblown View Post
    That's excellent. So it does appear true, what the Sierra technician said, some 1:10" barrels will, some won't.

    This is one of the best results I've seen on the web for the 90gr 6mm bullet.

    Bloody good advert for Tikkas as well.
    It's actually a secondhand gunworks fluted tikka barrel screwed on to a Sako A2 in a Ken Henderson stock so a bit of a cross breed Soon to be rebarreled with a 1-8" bartlien chambered in 6mm creedmoor though.
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  6. #51
    Member outdoorlad's Avatar
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    Have just worked up a load with the 130gn G/C in my 260 carbonlite, 20” barrel and got 2860fps with Superformance. One trip to the range for a ladder test, then another for some groups..done, very easy. Be interestingly to see how they go on deer.
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    Shut up, get out & start pushing!

  7. #52
    Gkp
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    Guys, Check out the new Sierra App. Pretty cool
    outdoorlad and 300AAC like this.

  8. #53
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    Bit of an update to this thread guys.
    After a year of using the Game Changes myself, and developing a tonne of custom loads with them. 6.5-30 cals. They have proven to be an exceptional bullet.
    I haven't developed a load that shoots more than 1/2 MOA and have had several go 1/4.
    Performance on Game is exactly what you expect from an expanding bullet. I keep telling guys, in summary, the perform like an accubond, but are generally more accurate, and have a better BC.
    I have not loaded 6mm, but have heard tighter twists are required.

    I'm looking forward to the day Sierra release heavy options in 30 and 6.5 cals!

    Please feel free to email me at info@blackwatchreloading if I can offer any advive from personal experience. Cheers

  9. #54
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    My only experience is with the 6.5 130gr GC from a Schultz and Larsen 6.5-284. The load I developed produced groups of .24 MOA at 100m that still hold .44 MOA at 400m. So far the only Red Stag I have shot with them was at 300m and I hit him in the neck about 100mm below the head. The exit hole measured about 23mm.
    Tech
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  10. #55
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    @300AAC On your Instagram those are some pretty massive exit wound holes on those smaller deer, eh.
    Just...say...the...word

  11. #56
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    A couple are @Flyblown. Different to a Berger explosion. Like i say, more like a accubond. They drop them big time

  12. #57
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  13. #58
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    Thank you to @shift14 for sending us this from his recent shoot. I'd call it a day there mate!!

  14. #59
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    Must take the 243 out for a walk and try the 90 gr GC bullets, trouble is I like the ELD X range so much it's hard to not take one of the rifles shooting those bullets. Still keen to try the 90 gr ELD X when available … any news on this one yet?

  15. #60
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    Sorry @Mooseman only the 103gr ATM

 

 

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