alternative powder for .243 win

Discussion in 'Handloading and Reloading' started by FrancoisBuys, May 1, 2022.

  1. FrancoisBuys

    FrancoisBuys Member

    Joined:
    Sep 13, 2021
    Messages:
    36
    Good day all.

    Im starting to reload for a .243 win with a 1:10 twist 24" barrel, using 95gr SST. Hornady brass with CCI200 primers.

    The problem is that I can not get hold of any powder that is known to work in the cartridge. In an ideal world I would use IMR or H4350 but currently the only powders in stock is IMR 7828ssc, H1000 and Varget. Not one of these powders really suite the burn rate that the .243 win likes. The only one of those three powders that seems like it might work is 7828ssc.

    Anybody out there that is using 7828ssc in the 243win with a similar bullet weight ? What is the accuracy like?
     
  2. Varminterror

    Varminterror Member

    Joined:
    Jul 17, 2016
    Messages:
    11,058
    I’ve burned pounds and pounds of H1000 and Varget under the heavy 95-100’s in 243win… I guess I missed the memo that they weren’t well suited for the task
     
  3. FrancoisBuys

    FrancoisBuys Member

    Joined:
    Sep 13, 2021
    Messages:
    36
    Well according to most people Varget is burning to fast for the 95-100 and pressure signs starts early. H1000 is to slow and doesnt get up to pressure before there is no more space left for powder in the case.
     
  4. lordpaxman

    lordpaxman Member

    Joined:
    Jun 4, 2011
    Messages:
    1,739
    Chuck R. likes this.
  5. IALoder

    IALoder Member

    Joined:
    Oct 23, 2020
    Messages:
    750
    H4831SC does well for 90-100gr bullets in my .243. Never tried 7828 in it, but it'd be the one I'd try first out of what you have listed, then H1000 would be next.
     
  6. Chuck R.

    Chuck R. Member

    Joined:
    Jan 23, 2005
    Messages:
    4,043
    Location:
    Leavenworth, KS
    Another H4831SC fan.

    Worked well in my 26" barreled .243, and still worked when I screwed on a Bartlein 26" in 6mm SLR with 100s, 105s, and 115s. The 6mm SLR has slightly less capacity than the .243W. Velocity with both was just shy of 3200 with the 105s.
     
  7. Howa 9700

    Howa 9700 Member

    Joined:
    Feb 10, 2021
    Messages:
    597
    Am also loading for 243 win......and have found load data all over the place for it. A rifle caliber with split personality as to preferences for powder.

    As for Varget.........the Hornady reloading manual names N140 and IMR4064 as most accurate powders for the 243 Win.......and Sierra also named IMR4064 as most accurate powder for an 85 gr sierra game king. Those are in same burn range as Varget. Lee has load data for all the powders you mentioned. So may depend on if you are looking for ideal.....whatever that is......or something to go bang.
     
  8. Taurus 617 CCW

    Taurus 617 CCW Member

    Joined:
    May 25, 2003
    Messages:
    1,822
    Location:
    Northern Idaho
    Another avenue you can approach is to buy a pound of the available powder that is most popular and offer it up on a local forum for trade. I have done that a few times successfully. I believe Varget will be your most popular powder followed by H-1000. It might be worth a try.
     
  9. horsey300

    horsey300 Member

    Joined:
    Sep 3, 2016
    Messages:
    3,111
    Location:
    Wyobraska
    H1000 will work just fine with a 95, I run a max load.
     
  10. Laphroaig

    Laphroaig Member

    Joined:
    Feb 24, 2013
    Messages:
    2,149
    Location:
    W. PA
    I'd think that .243 would be in Varget's wheelhouse. If that's one that I had on-hand I'd give it a try before assuming anything.
     
    IALoder and rocirish like this.
  11. 2ndtimer

    2ndtimer Member

    Joined:
    Apr 4, 2011
    Messages:
    914
    Location:
    SE Washington State
    With 95 gr bullets, both H-1000 and IMR-7828 should work, although I haven’t tried either. My personal current favorite with 90 gr bullets is Reloder 17, although it is currently tough to find. Others I have used over the years with reasonable success in similar burn rate would include IMR-4831, H-4831, Ramshot Hunter, and Alliant Power Pro 4000-MR. These powders do show up occasionally online and locally more often than IMR or H-4350, H-1000 or Varget.
     
    Captcurt and IALoder like this.
  12. stillquietvoice
    • Contributing Member

    stillquietvoice Contributing Member

    Joined:
    Feb 25, 2016
    Messages:
    2,556
    Location:
    Upstate ny
    I've used several powders in 243 win, win 760 with nag primers, ramshot hunter, imr and h 4350. Imr and h 4895, even superformance with 100 gr hornandy hpbt interlocks. All have produced satisfactory groups, some haven't given the highest velocities imr and h4895 were lowest but did shoot into very small groups. I'd also look into accurate powders 2230, 2460, 4064, 4350 there are others that work as well but these are ud if ally less expensive.
     
  13. JimKirk

    JimKirk Member

    Joined:
    Nov 23, 2008
    Messages:
    3,490
    Location:
    Nicholls,GA South Georgia
    IMR 7828 works well in the .243 with 95 & 100 grain bullets ..... really accurate in my Remington 700....
     
  14. Varminterror

    Varminterror Member

    Joined:
    Jul 17, 2016
    Messages:
    11,058
    You do you, boo. Neither of those “problems” have been a problem for my rifles with Varget or H1000, so I guess I’m lucky my rifles belong to me instead of “most people.”
     
  15. BigBlue 94

    BigBlue 94 Member

    Joined:
    Dec 5, 2018
    Messages:
    2,595
    Location:
    The Great American Prairie
    Varget in stock!? Thats been a long time coming.

    I run IMR4831 in my 243 behind a 75gr bullet. About a 3400 fps load. Its my deer load.

    Ive heard good things about the 7828SSC but never tried any.
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice