6.5x47L Powders

Discussion in 'Big Stuff -- 6.5mm, 7mm, 30 Cal' started by roberti11, May 20, 2010.

  1. roberti11

    roberti11

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    I have read articles describing H4350, RL15 and RL17 in this cartridge. I have used all 3 and settled on H430 and Lapua 123gn Scenars in competions for the last year and a half. This year I decided to try Hybrid H100V, I have not been able to find any published loads with this powder. So far I have had excellent results compared to my standard loads using H4350. This powder is a dream to meter, and equivalent loads are about 108% (compressed), I was wondering if anyone here has experience with this powder.
     
  2. biglakesrule

    biglakesrule

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    Can you describe the barrel you're using: length, twist...

    I've been trying H4350 in a short-ish 1:8 twist barrel with 142 Sie MKs and 130 gr Bergers and haven't found a sweet spot. Getting about 2700 fps with the 142s (that might be my problem) and that's a compressed, seated into the lands load.

    I've been thinking of trying a different powder, but I'm hesitant... it could be me, it could be the barrel, it could be the never-fired brass—still experimenting.
     
  3. roberti11

    roberti11

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    Sorry, I should have mentioned the specifics, I am using a 29 inch 1:9 twist Gaillard bbl (Canadian custom bbl maker, button rifled) Palma Contour, Pacific tools no turn neck reamer, 0.140 free bore. Using a Stiller Tac 30 action, and bedded in a McMillian A5. Brass is all Lapua, neckturned to clean up irregularites, bushing neck sized and wt sorted. The Lapua bullets are wt sorted as well.
    Load data is here..., the HV100 data is at the bottom

    [​IMG]

    shootershaven.net/MarkPic/Lapua6_5x47/6547L.jpg
     
  4. ThunderDownUnder

    ThunderDownUnder

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    I haven't tried RL17 yet but I achieve very good accuracy and velocity using Varget for the 130-139gr bullets.

    Ian
     
  5. DennisH

    DennisH Life Time NRA member Silver $$ Contributor

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    37.5 RL15, 130 Bergers, .015 IN, 28" McGowen Barrel, 8 twist, My gun has two sweet spots, this load and 34.8 does the trick also!

    120gr SMK's, 39.3 RL15, bullet on the lands!!!!!!!!!!
     
  6. Erik Cortina

    Erik Cortina Team Lapua Brux Borden Captain Gold $$ Contributor

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    Try Reloader 17, it works well with bullets 120 - 142 grains, it has given me very good accuracy with 123 AMax, 130 Berger VLD's, and specially 139 Scenars.
     
  7. DennisH

    DennisH Life Time NRA member Silver $$ Contributor

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    X3MHunter, wanna share some starting loads with the RL17 and the 130's and 139's! I would love to try to see if it works for me.

    I have some JLK 140's I either need to sell or find a load for!

    I know a lot of peolple don't like sharing load info, that's why I always put my barrel size and twist when I give out a load!
     
  8. Erik Cortina

    Erik Cortina Team Lapua Brux Borden Captain Gold $$ Contributor

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    Reloader 17 in 6.5x47 Lapua.
    Start at 39 gr. with the 140's.
    Start at 40 gr. with the 130's.
     
  9. Laurie

    Laurie

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    No direct experience of this combination, but running it through QuickLOAD suggests it's on the slow side for this cartridge even with 140gn bullets - heavy compression needed to get near standard / max pressures.

    Jason Baney tried it in 6-6.5X47L which needs slower burners (Bulletin April 12th 2009) but found it a bit too slow even for this application and that H4350 and Reloder 17 were superior.

    http://bulletin.accurateshooter.com/tag/powder/page/2/

    Laurie,
    York, England
     
  10. Erik Cortina

    Erik Cortina Team Lapua Brux Borden Captain Gold $$ Contributor

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    I have found RL17 to be the "perfect" powder for the 6.5x47 Lapua with the 140 class bullets, you will hit max pressure at about 100% case fill ratio.
     
  11. shooter65

    shooter65 Gold $$ Contributor

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    37.2 gr. of Varget or 37.3 of '15 with 123's works for me.
     
  12. DennisH

    DennisH Life Time NRA member Silver $$ Contributor

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    h4350 was doing the trick for me today, will perfect it tomorrow! I feel confident I will be shooting some .300 or less groups!

    130gr bergers
     
  13. DennisH

    DennisH Life Time NRA member Silver $$ Contributor

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    RL17, well I also have some RL17 for my JLK 140's, I guess I will START at 39.0 grns and work up!!!!!

    ??? :-\

    37.3grns Varget in the 120 to 123gr class is PERFECT as stated above,

    I'm getting ready to load some more 130 Bergers with H4350, I wasn't even trying and shot some pretty impressive groups with the H4350! Hopefully I will post some of my targets this evening!
     
  14. ChrisNZ

    ChrisNZ

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    Yep, 38 of Varget in my 27" Shilen barrel gives 2945 av vel and one hole groups. Can safely go above that but groups start to open up.

    Chris-NZ

    (PS- that's with 123 Scenars)
     
  15. DennisH

    DennisH Life Time NRA member Silver $$ Contributor

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    Well, here is my group with H4350 and 130 Bergers! After looking, what do you think, VARGET or H4350? All shots are at 100yds. My gun likes Bergers on the lands, tried several off and several .015in. On the lands worked on all loads. All groups are less than .250 with the expection of the one 1o'clock shot on the white target!

    I wasn't trying with this round, just trying different powders

    [​IMG]
    But on the second round shown below, I know I pulled the 4th shot at the 1o'clock position, otherwise, 4 are almost in one hole.

    [​IMG]

    Below is 5 shots with Varget, 34.8grns which seems low to everyone else's Varget loads!
    [​IMG]
     
  16. shooter65

    shooter65 Gold $$ Contributor

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    Varget looks good to me.
     
  17. flatlander

    flatlander

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    Laurie,
    Were you refering to H100V when you were talking about the powder being 'too slow' for the 6.5x47? I bought a couple of 8lb. jugs of the stuff over a year ago when most of the other powders I wanted/needed weren't available, and have yet to find a really good use for it. IOW, there are other powders that provide better velocity & accuracy in every cartridge I've tried it in. IMR4007SSC is another one that I'm wondering what to do with. So far, the best application(s) I've found for either one is fireforming 6XC & 250 AI cases.

    As far as the 6.5x47 goes - my primary application is with an Eliseo RTS in XC HP matches, where N150 & RL17 are my primary powders. N150 works well with S107MKs, and RL17 is killer with Berger 130VLDs & 140 LR BTs. I'm running the 130s at 2933fps, and the 140s at 2824fps. They'll both go faster with RL17, but that's where the accuracy's at in my 28" Krieger 1:8tw.
     
  18. DennisH

    DennisH Life Time NRA member Silver $$ Contributor

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    The only thing that bothers me is everyone else is using 2grns or better with Varget.

    But if everyone thinks my Varget load will be a 1K shooter, than Varget it is!
     
  19. Laurie

    Laurie

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    Dennis,

    yes, that's so. I've no experience of the powder, and we may not even have it in the UK. (New Hodgdon / IMR / Alliant introductions take 12-18 months to arrive here after the US launch and some don't make it if they have limited applications.) I did remember H100V as being described more or less as a magnum powder on its US launch, so ran it through QuickLOAD for 6.5X47L as this is a cartridge I have a bit of interest in. QL suggests it doesn't look ideal in this application and while not infallible in such exercises, the program usually gives a pretty good indication as to powder suitability.

    Looking at Hodgdon's description of the powder and its loads, the company says it's between 4350 and 4831 in burning-rate, and ideal for cartridgtes such as .270 Win, .243 WSSM, and 7mm Rem Magnum.

    Hodgdon doesn't provide any 6.5X47L data, but does for .260 Rem and 6.5 Hornady Creedmoor and there are loads for H100V with 120gn and up bullets in these two cartridges with apparently good MVs, albeit with compressed loads in some cases. I tend to think of this pair as equivalents to the 6.5X47L and they're certainly in competition with each other, but returning to QL, the case database default overflow water capacities are different, the Lapua a fair bit smaller.

    .260 Rem: 53.5gn H2O
    6.5 Hdy CM: 53.5gn H20
    6.5X47L: 48.0gn H2O

    It's that 10% capacity reduction that makes the difference. Whether H100V 'works' in the cartridge depends on how it performs with below max pressures and/or heavy compression. As a spherical form magnum powder, the omens aren't over good, but I could be well out of order with that view.

    Looking at QL results again you can just get up to max pressure with 40.5gn H100V behind the 142gn SMK at the standard COAL, but it's a 10% over capacity compressed load. Reducing it to 37.5gn and a 102% fill-ratio, the MV is down to 2,670 with a 30" barrel and PMax of 48,742 psi compared to the cartridge max of 63,075 psi. I'm not 100% convinced by 139-142gn bullets in the 6.5X47L and substituting the 130gn Berger drops the 102% fill-ratio load pressure to around 45,000 psi. Even H4350 which is very popular in the cartridge seems a bit on the slow side needing compressed loads to get max pressures with the 130.

    Anyway ...... I know that QL doesn't always work out, so there's nothing definitive about this.

    On IMR4007ssc, it's all gone very quiet too after the launch - you hardlky ever see a mention anywhere now. Oddly enough, I've just bought my first couple of tins of the stuff. Being a bit faster burning than H100V (Hodgdon says between IMR-4320 and 4350), I thought I'd give it a try in .308 Win for my long-range heavy bullet loads as a possible alternative alongside Alliant Reloder 17 to Viht N550 which I currently use. I've yet to try it, so no experience to date I'm afraid.

    Laurie,
    York, England
     
  20. DJ111

    DJ111 Silver $$ Contributor

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    I put together a Bat B 1.55 with a 30'' Bartlein 5R 8.5 twist Barrel. Chamber is a .165 FB 1* lead 292 neck.

    I am using 38.6 grains of Varget behind Berger 130 VLD's with Wolf Mag primers at 2980 fps and it shoots very, very well.

    I tried H4350 but even with 42 grains compressed it would only manage 2936 fps. It shoot allright but not as good as Varget.

    I see no need to try R17 with the 130 class bullets as the Varget would push the 130 vld's to 3050 in my gun before the bolt even started to open stiff at all and the primers would show flat edges. With Varget my fill ratio is about perfect with the Free Bore I have and the primer edges are still round at 38.6 grains.

    I have 9 firings on my cases and the primer pockets are still tight.

    The groups started to open up after 39.1 grains of Varget at 3020 fps and at 39.4 they would run 3040-3050.

    These loads are safe in my gun so as always start low and work up untill you see pressure in your gun.

    Dallas
     

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