6.5 - 2900 ft/s most efficiently?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by wapitiaddict, Nov 1, 2018.

  1. wapitiaddict

    wapitiaddict Member

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    What 6.5 cartridge will comfortabily shoot, with multiple powders (not just RL 26 because that is hard to find these days), a 140-143 gr bullet, from a 24 inch barrel, at 2900 to 3000 ft/sec the most efficiently...meaning the least amount of powder (least amount of recoil)? And preferrably without having to run super hot loads the whole time. Maybe a quickload question?

    I'm going to build a 6.5 rifle and the 2900 ft/sec mark is what I want to achieve in a 24 inch barrel, and want to use the least amount of powder to get there.

    Options I'm currently looking at are 6.5-284, 260ai (maybe stretching it with just a 24 inch barrel), 6.5-06, etc. I don't care to go over 3000ft/ sec so options like 264 win mag are probably out.
     
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  2. Barrelnut

    Barrelnut Well-Known Member

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  3. wapitiaddict

    wapitiaddict Member

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    Ill take a look at the PRC.
    I just got looking at some Nosler load data of the 6.5 rem mag (seems to be an unpopular cartridge). It seems to get some surprising velocities for mid 50s powder charges. Seems to be similar to the 6.5-284 but with just a tad more velocity. Any thoughts?
     
  4. jmcmath

    jmcmath Well-Known Member

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    I would say 6.5 ss or 6.5sst would be most efficient
     
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  5. xdHammar

    xdHammar Member

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    Can you use any bolt face or do you have some of the parts purchased already?
     
  6. wapitiaddict

    wapitiaddict Member

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    I'm starting from scratch....

    Edit: Having said that, I don't want to get super crazy into the wildcats that require multi-step brass forming. A one step resize or fire forming is fine. But I don't want to have to spend a lot of time forming complicated brass.
     
    Last edited: Nov 1, 2018
  7. BeaverHunter

    BeaverHunter Well-Known Member

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    I got over 2900 FPS quickly in my completely stock 6.5 284 Nosler Patriot using reloader 22 and 140 grain Berger VLDs.
     
  8. Greyfox

    Greyfox Well-Known Member

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    You should have no problem hitting 2900+ FPS with the 6.5x284 Norma with.a 24” barrel. Several readily available powders will work well, not to mention the availability of excellent Lapua Brass.
     
  9. adam32

    adam32 Well-Known Member

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    6.5 saum...run it at a bit lower pressure to achieve your desired velocity then extend barrel and brass life...
     
  10. Barrelnut

    Barrelnut Well-Known Member

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    I think the 6.5 Rem Mag is pretty much dead. Looks like Remington doesn't even chamber a rifle for it now. It was kinda plagued by some of the same issues as the 264 Win Mag. One of them was twist. The SAAMI twist for the 6.5 rem mag was only a 9 twist so it wasn't a good match for the 140 gr bullets that became so popular.
    Would probably make a great custom though with a 8 twist but I think brass would be hard to find (reliably anyways). These days there are just better choices like 6.5x284 with Lapua brass.
     
  11. Farmerboy78

    Farmerboy78 Well-Known Member

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    I am running a 6.5-06 with the 140 hybrid. I am running just over 3000fps with re26.. 3015 to be exact
     
  12. Timnterra

    Timnterra Well-Known Member

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    That sounds like a 6.5 SAUM, 6.5 Sherman short magnum or 6.5 PRC or 6.5 WSM if you want a short action. 6.5-284, 6.5-06, 6.5 sherman for the long. I'd go with the 6.5 SAUM or PRC if it was me.
     
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  13. ramrod79

    ramrod79 Well-Known Member

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    Go to 6.5 Sherman Short or SST. See Sherman wildcat cartridges and don’t look back. The Sherma short and Short tac has brass avalible and good brass to boot !! I shoot a Sherman LA 6.5 at 3250 with 140vld his SST would be right up your alley again with good brass.
     
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  14. Edd

    Edd Well-Known Member

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    Decide what action you would prefer then pick from a 6.5-284, a 6.5-06, or a 6.5 PRC.

    If you let me decide, I would choose a Surgeon WSM action and a 6.5 PRC cartridge.
     
    Last edited: Nov 1, 2018