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Thread: 6mm Creedmoor vs 243

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  1. #1
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    Quote Originally Posted by Flyblown View Post
    And when the range stretches out with the lower BC, speed shedding bullet, your chances of missing the hilar zone increase, especially in those pesky fickle gully winds blowing around the faces.

    I’ve done heaps of drop tests at 200, 250, 300m with the .243 Win, to nail down my drops as well as I can. Various traditional hunting bullets, 85-100gr. Once I’ve got the ES down to acceptable levels and the drop from the point of aim is reasonably consistent, it’s the horizontal dispersion that raises big questions. Like… crikey… that was off to the left /right, enough to put the bullet slightly too far back on the deer, no problem. Picking those annoying downrange breezes you can’t really see is so hard, especially in our CNI winter conditions.

    The >100gr 6mm bullets that have come along in the last few years shoot tighter at that range. They just handle the conditions that bit better, and for me have improved confidence no end at the ranges at which I wouldn’t take the shot with my .243… you’ve probably seen this before but seeing as how we’ve here… Gotta make some new vids.

    Man that WHACK! is deafening on impact.

  2. #2
    sneakywaza I got
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    Statistics can be used to prove anything you like, Select your own cartridge/pill combination driving along quickly, against it select a cartridge/ pill combination with a much lesser bc, drive it slowly and viola! your point is proved.

    Lucky for me I guess, my .243 (9t) is one of those weird ones that can push a decent bc pill fast, my 95 Berger is going 3050 at a not max load, 300m? 2400fps, big Red just goes down where he stands, as do Tahr, somewhat harder to kill than a Red if you cock it up........ Oddly, it will push a 105 Berger at 2950, and the 9 twist still keeping it stable at 300m arriving at about the same speed as the 95.

    Imagine, if you will, a world where the 6mmCreedmoor had a 10 twist and pushed a 95 Nbt slowly, and a .243 had a 7.5 twist and pushed a 108 Amax fast..........

  3. #3
    Member Flyblown's Avatar
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    Quote Originally Posted by 257weatherby View Post
    Statistics can be used to prove anything you like, Select your own cartridge/pill combination driving along quickly, against it select a cartridge/ pill combination with a much lesser bc, drive it slowly and viola! your point is proved
    Nope. Nice try but not even vaguely close mate.

    Both examples I gave above are using the same muzzle velocity (3,000 ft./sec). Which is a realistic muzzle velocity for both cartridges using those common and popular bullets, not the hottest load and by no means the slowest. It’s the most sensible way of demonstrating the difference between the two cartridges at the range our mate here told us he wants to be able to shoot large deer.

    And why when shooting large red deer in particular, I have come to the view that one is more suitable than the other.

    I get the .243 fanboy reticence to see the issue for what it is. Remember I have been a .243 shooter since I was in my early teens, 40 years ago. I can out-fanboy the best when it comes to loving the .243 Winchester. In that time there’s only been a handful of years that I have not been in possession of one. I know the cartridge inside out and back to front, just like you.

    I also know what 30% more thump looks like at the business end….
    Nugget connaisseur likes this.
    Just...say...the...word

  4. #4
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    Hence the chat around twist over all mag length is worth a consideration as well depending on the platform

  5. #5
    Member Dreamer's Avatar
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    But if you have to identical rifles chambered in .243 & 6mm cm with 8 twist barrels the same length pushing the same pill there’s going to be a difference in thump??
    "O what a day, what a lovely day"

  6. #6
    Member Flyblown's Avatar
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    Quote Originally Posted by Dreamer View Post
    But if you have to identical rifles chambered in .243 & 6mm cm with 8 twist barrels the same length pushing the same pill there’s going to be a difference in thump??
    What do you think?
    Just...say...the...word

  7. #7
    Member Dreamer's Avatar
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    Quote Originally Posted by Flyblown View Post
    What do you think?
    I know what I think. I also think that @257weatherby may have been implying the same thing??
    "O what a day, what a lovely day"

  8. #8
    Member Flyblown's Avatar
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    Quote Originally Posted by Dreamer View Post
    I know what I think. I also think that @257weatherby may have been implying the same thing??
    It’s totally irrelevant though, isn’t it.

    This circular argument keeps coming up. Oh but what if the .243 Winchester has a 8” twist barrel.

    It doesn’t. No mainstream manufacturer has ever made a .243 Winchester with an 8” twist barrel.

    That would be the end of the story where it not for the fact that a tiny tiny handful of people select a fast twist .243 Win aftermarket barrel. Which if I was the OP is what I would’ve done. But he didn’t. He went with the 1:10”.

    So he is stuck with the comparison between the two, in this instance a 10” twist versus a 7½” twist. A lifetime of wondering what if?!

    So it is the end of the story after all. It’s not about the brass receptacle that holds the powder. It’s about what length / weight bullet the barrel will shoot. The rest is just waffle.
    Just...say...the...word

  9. #9
    Member Dreamer's Avatar
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    Quote Originally Posted by Flyblown View Post
    It’s totally irrelevant though, isn’t it.

    This circular argument keeps coming up. Oh but what if the .243 Winchester has a 8” twist barrel.

    It doesn’t. No mainstream manufacturer has ever made a .243 Winchester with an 8” twist barrel.

    That would be the end of the story where it not for the fact that a tiny tiny handful of people select a fast twist .243 Win aftermarket barrel. Which if I was the OP is what I would’ve done. But he didn’t. He went with the 1:10”.

    So he is stuck with the comparison between the two, in this instance a 10” twist versus a 7½” twist. A lifetime of wondering what if?!

    So it is the end of the story after all. It’s not about the brass receptacle that holds the powder. It’s about what length / weight bullet the barrel will shoot. The rest is just waffle.
    Yes true I had forgotten the factory rifle point and that’s why I don’t normally bother with having a say ����
    "O what a day, what a lovely day"

  10. #10
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    @Flyblown, the Barrett Fieldcraft...

    Name:  nTqMOlf.jpg
Views: 348
Size:  237.1 KB
    Dreamer and 257weatherby like this.

  11. #11
    Member Happy Jack's Avatar
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    Been pondering something similar but .243 v 7mm08. Since I can't afford either at the moment I'll keep pondering.
    Shearer likes this.

  12. #12
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    Howa do here in Australia

    HOWA
    1500 LONG RANGE THUMBHOLE
    26" VARMINT BARREL
    THREADED MUZZLE
    PIC RAIL
    THUMBHOLE BOYDS STOCK

    AVAILABLE IN
    FOREST 6MM CREEDMOOR NEW $869
    FOREST 6.5 CREEDMOOR NEW $869
    FOREST 308WIN NEW $869
    COYOTE 6MM CREEDMOOR NEW $869
    COYOTE 6.5 CREEDMOOR NEW $869
    COYOTE 308WIN NEW $869

  13. #13
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    A couple years ago, I probably would have went with the CM.
    Nowadays id probably go with the .243.

    I just think availability is worth something. I think at distances where there is a real difference, on game, you should probably be using a bigger gun anyway.
    Shearer and 7.62 like this.

  14. #14
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    Yup. Very un-fucking mainstream!

    And probably north of $4000 by the time the usurious Kiwi middlemen have gotten involved.

    So completely unhelpful!

    Nice rifle though.
    Just...say...the...word

  15. #15
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    Quote Originally Posted by Flyblown View Post
    Yup. Very un-fucking mainstream!

    And probably north of $4000 by the time the usurious Kiwi middlemen have gotten involved.

    So completely unhelpful!

    Nice rifle though.
    Yeah something like that would be amazing, but as you say incredibly expensive and hard to come by.

    If after a while I feel like I'm not getting enough out of the 243 I'll start looking for something twistier or different again. Maybe I'll grow a man bun between now and then, who knows?
    Shearer and caberslash like this.

 

 

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