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Thread: Anyone built a 6mm Grendel/6mm AR/6mm Predator/243 LBC?

  1. #1
    GWH
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    Anyone built a 6mm Grendel/6mm AR/6mm Predator/243 LBC?

    All the same, just a basic neck down of a 6.5 Grendel to 6mm.

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    Yup. Had a LBC reamer but never got round to chamber a barrel with it, the 6PPC was going so well that I ended up selling the reamer to a mate.

    Ordered a Howa in 6ARC......
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  3. #3
    GWH
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    Quote Originally Posted by Jaco Goosen View Post
    Yup. Had a LBC reamer but never got round to chamber a barrel with it, the 6PPC was going so well that I ended up selling the reamer to a mate.

    Ordered a Howa in 6ARC......
    When are the Howa 6ARC's due to our shores?

    From the research id done on the 6 AR i reckon i could have pushed an 87gr at close on 3k.

    How much less capacity does the ARC have?

    Certainly a cheaper and easier way of getting very similar cartridge.

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    Will let you know as soon as I find out mate. Last news was 2022
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  5. #5
    Not just an internet expert... The Claw's Avatar
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    Quote Originally Posted by GWH View Post
    When are the Howa 6ARC's due to our shores?

    From the research id done on the 6 AR i reckon i could have pushed an 87gr at close on 3k.

    How much less capacity does the ARC have?

    Certainly a cheaper and easier way of getting very similar cartridge.
    I was getting around 3050 with 87gr vmax when fireforming 6mmBR brass to 6mmBRA. 30.8gr of powder out of a 24" barrel.

    What sort of powder capacity is the case you are looking at using?

    Sent from my SM-N975F using Tapatalk
    If it's not a first round hit you need to practice more

  6. #6
    GWH
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    Quote Originally Posted by The Claw View Post
    I was getting around 3050 with 87gr vmax when fireforming 6mmBR brass to 6mmBRA. 30.8gr of powder out of a 24" barrel.

    What sort of powder capacity is the case you are looking at using?

    Sent from my SM-N975F using Tapatalk
    Nice!

    I was just looking at a blokes data from his 243 lbc (6mm Grendel) 22" barrel. His pet load was 87gr vmax in front of 28.6gr of 8208 for right on 3k

    It seems really good performance for the amount of powder burnt.

    What do you use your 6mm BRA for?

  7. #7
    Not just an internet expert... The Claw's Avatar
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    I built it for varminting but have used it for a couple of matches recently. Got a heavy barrel that I'm chambering in BRA too which will be primarily for match shooting

    Sent from my SM-N975F using Tapatalk
    muzr257 and GWH like this.
    If it's not a first round hit you need to practice more

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    A Howa Mini in 6mmARC 20" Barrel lightweight stock 87gn 2900fps 75gn 3015fps
    Name:  Howa mini 6ARC.jpg
Views: 683
Size:  1.79 MB
    GWH, Flyblown, Droppa and 1 others like this.

  9. #9
    Member Flyblown's Avatar
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    Quote Originally Posted by 300MAG View Post
    A Howa Mini in 6mmARC 20" Barrel lightweight stock 87gn 2900fps 75gn 3015fps
    Very cool. What twist rate is that barrel?
    Just...say...the...word

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    Quote Originally Posted by Flyblown View Post
    Very cool. What twist rate is that barrel?
    1x10

  11. #11
    GWH
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    Quote Originally Posted by 300MAG View Post
    A Howa Mini in 6mmARC 20" Barrel lightweight stock 87gn 2900fps 75gn 3015fps
    Attachment 172999
    Nice, pretty handy little shooter.

    Did you start with a new barrel blank or was that a take off barrel that youve had a new tenon cut to suit. Are you able to disclose your powder and charge weight?

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    Quote Originally Posted by GWH View Post
    Nice, pretty handy little shooter.

    Did you start with a new barrel blank or was that a take off barrel that youve had a new tenon cut to suit. Are you able to disclose your powder and charge weight?
    New 6mm barrel from Truefile (have a cheap 7.62x39 if you want a new one) wanted their deep valute fluting to help cooling as this rifle fires lots of rounds (45 goats last weekend). The 87gn bullets perfect for bigger animals deer and 75gn perfect for goats.
    GWH and Mathias like this.

  13. #13
    GWH
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    Quote Originally Posted by 300MAG View Post
    New 6mm barrel from Truefile (have a cheap 7.62x39 if you want a new one) wanted their deep valute fluting to help cooling as this rifle fires lots of rounds (45 goats last weekend). The 87gn bullets perfect for bigger animals deer and 75gn perfect for goats.
    Good stuff. So has truflite got the reamer?

    Which 87gr and 75gr are you using.

    Ive seen what 87gr Vmaxs from a short barreled 243 do to goats, very impressive.

  14. #14
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    Quote Originally Posted by 300MAG View Post
    A Howa Mini in 6mmARC 20" Barrel lightweight stock 87gn 2900fps 75gn 3015fps
    Attachment 172999
    Sweet rig! Who fitted the barrel?

  15. #15
    Huk
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    Watching with interest sound good

 

 

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