6.5-284 load development (changing powder)

Discussion in 'Long Range Hunting & Shooting' started by Backcountry_IDN, Aug 19, 2018.

  1. Backcountry_IDN

    Backcountry_IDN Well-Known Member

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    So I built this rifle, I'll give specs in a minute. I had a little bit of trouble figuring it out. Still not there. Barrel did not like my powder selection I'm guessing.

    Also you can see in the photos that what I'm guessing is, nosler loaded these factory rounds a tad hot. Not sure if it was a bad batch or what. I've contacted them to see what they think could've happened. Unfortunately it blew shrapnel down my barrel and had some in my magazine.
    I bought a box of trophy grade ammo for a barrel break in before doing my ladder test.

    Specs

    RIFLE
    Tikka t3x action
    Xcaliber 1:7 6groove 26in #4
    Factory stock
    Vx5hd
    Nightforce 20moa rail
    Warne rings

    LOAD
    6.5-284
    Col: 2.96
    143eldx
    RL 19
    Lapua brass
    Fed 210

    Started at 48 gr and worked up by .5 all the way to 50gr.

    No pressure signs on any of sorts.

    Middle target is 48 gr.
    Bottom left 48.5
    Top left 49 (shooter error, shot high off the bags)
    Bottom left 49.5
    Top left 50

    Thinking of going with a slower burning powder due to a 26in barrel. Maybe imr 4831 or Rl22 IMG_20180818_161159.jpg IMG_20180818_161144.jpg IMG_20180818_190418.jpg IMG_20180818_190411.jpg IMG_20180818_190424.jpg IMG_20180818_185431.jpg

    Let me know any suggestions or comments feel free.
     
    jasonco likes this.
  2. Greyfox

    Greyfox Well-Known Member

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    Try Retumbo, seated .020”-.040” off the lands. Below:

    Savage LRH, 24”, 1:8 twist. 200 Yards
    B1FDF3B9-4C21-435C-A0A5-D46227489880.jpeg
     
  3. Backcountry_IDN

    Backcountry_IDN Well-Known Member

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  4. duckhunter175

    duckhunter175 Well-Known Member

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    I had good luck with RL19 and my 6.5x284- 140 Amax and 50.5gr- My alternate choice for powder would be H4831sc.
     
  5. Backcountry_IDN

    Backcountry_IDN Well-Known Member

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    Thanks! Might try 49gr again with a better rest. After break in my shoulder was hurting a bit lol so I could of been flinching. My .300 kicks less.

    What speeds you getting?
     
  6. Timnterra

    Timnterra Well-Known Member

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    I like slower powders for overbore cartridges like the 6.5-284. I’d start with h4831 and try h1000 as well as reloader 26 both of which seem to give good results no matter what cartridge I’ve used them in.
     
    joes264, Dirty45 and Backcountry_IDN like this.
  7. Backcountry_IDN

    Backcountry_IDN Well-Known Member

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    Awesome thank you! Probably will try h1000 in my .300 wm

     
  8. rfurman24

    rfurman24 Well-Known Member

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    Even if you found an accurate load with RL19 it is temp sensitive. Are you planning on longe range hunting? It is not a powder I would trust. I would take Greyfox's advice. 56.0-57.0 gr retumbo with a 140 class bullet in the 6.5x284 will no doubt give an accurate load.
     
  9. jpfrog

    jpfrog Well-Known Member

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    I took @Greyfox advice on Retumbo and it worked out well for me. 56gr gave me 2860fps and .2xx” groups with the 147 ELD-M, and 58gr gave me 3040fps and .3xx” groups. Slightly heavier bullet than your ELD-X, but not by much. I’m running a 26” Varmint 1:7.5” twist Criterion. I may go back and revisit that 56gr load, as my barrel was still fairly new and may have gained some speed since then.
     
  10. Backcountry_IDN

    Backcountry_IDN Well-Known Member

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    Yes sir. Will be for deer and smaller out to 6-700. Didn't realize it was temp sensitive. Thank you.

     
    waltercrouse likes this.
  11. Backcountry_IDN

    Backcountry_IDN Well-Known Member

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    Awesome! Thats great to hear! Looks like I'll go get a 1lb tomorrow to check it out.
     
    jpfrog likes this.
  12. stx

    stx Well-Known Member

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    Might try a muzzle brake ......I’ve got bad shoulders(4 surgeries including replacement) and I have breaks on everything, even my 6.5 CM!
     
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  13. jpfrog

    jpfrog Well-Known Member

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    Also, since we’re talking about a 1:7” twist that you are using, you may give @RockyMtnMT over at Hammer Bullets a PM. He makes a 137gr Hammer Hunter that should do well in your barrel. It will have a better BC than the ELD.
     
    Backcountry_IDN likes this.
  14. 26Reload

    26Reload Well-Known Member

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    "After break in my shoulder was hurting a bit lol so I could of been flinching. My .300 kicks less."

    Are you kidding........your shoulder hurts.....really....
    Better start over with a .22 and work up to the 65....
    Mine goes off and I forget that I pulled the trigger......and the whole rigging only weighs 7.8#.....

    I can't say where you are unless you know your speed...in my experience so far my barrel likes faster bullets....it did as a 260 and shows it again with it being rebored to 65284...
     
    Last edited: Aug 19, 2018