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Bought wrong powder

Discussion in 'Handloading and Reloading' started by balderclev, Apr 30, 2013.

  1. balderclev

    balderclev Well-Known Member

    So I thought I was buying IMR4198 but accidentally bought H4198.

    Now looking for load data for it under a Vmax 50gr in 223.

    Hodgdon has load data for a 50gr SPR SP starting at 19.5. I'm thinking about starting at 19.0 and working up. That load is slightly below what I've been seeing on the forums.

    Anyone disagree or have other suggestions?
  2. rcmodel

    rcmodel Member in memoriam

    IMR-4198 was discontinued some years ago.

    Hodgdon website has date for most bullet weights using H-4198.

    They show data for the 55 grain Speer and 60 grain V-Max.


    You can safely read between the lines and come up with a safe load.

  3. 45lcshooter

    45lcshooter Well-Known Member

    Yea I haven't seen IMR 4198 in some time. But 19.0 will be a good start. Some of my new calibers I reload for I go a little under the start grain.
  4. balderclev

    balderclev Well-Known Member

    Thanks guys. Decided to try 19 - 22 at .5 gr increments. The texture of this powder reminds me of Varget.
  5. Bill Jones

    Bill Jones Active Member

    I picked up a few pounds of IMR-4198 a few weeks ago at Bass Pro, so I dont think they have quit making it. Late last year Widener's had 8 lb. containers.
  6. KansasSasquatch

    KansasSasquatch Well-Known Member

    If you're loading it for an AR you may have some cycling issues. H4198 is on the fast side for .223. It's supposed to be a great .300BLK powder though.
  7. balderclev

    balderclev Well-Known Member

    Should have mentioned that I'm loading for a 22" bolt rifle.

    Eventually I will load for my AR but will have to do some research about COL and maybe crimping. Not crimping anything on rifles yet as my 308 is also a bolt gun.
  8. thump_rrr

    thump_rrr Well-Known Member

    I guess nobody bothered to tell IMR.
    I buy it all the time for 7.62x39.
    I'm just bugging you but it is still being made.
  9. guntech59

    guntech59 Well-Known Member

    For a case that small, I would go with .2 or .3 grain increments. Save the .5 gr increments for the bigger cases.

    Just my opinion.
  10. MEHavey

    MEHavey Well-Known Member

  11. billybob44

    billybob44 Well-Known Member

  12. Kevin Rohrer

    Kevin Rohrer Well-Known Member

  13. Arbo

    Arbo Well-Known Member

    Discountinued? I'm pretty sure that's what I've been buying and loading my .223 with...
  14. Steve C

    Steve C Well-Known Member

    There's no need nor any advantage to start below Hodgdon's starting load of 19.5 gr for the same bullet weight just because the bullet is another brand. The point of a start load is to make the load safe if different components like bullet manufacture, brand of case, powder lot, primer etc. are used and give a good safe "starting point" to develop an accurate load with optimum velocity. By listing a start load (-10% of max) Hodgdon has done the thinking and the math for you.
  15. Otto

    Otto Well-Known Member

    Hodgdon doesn't make any smokeless powder....they just re-label stuff.

    IMR4198 is manufactured in Canada by General Dynamics.
    H4198 is manufactured in Australia by ADI.
    Load data is NOT interchangeable.
  16. thump_rrr

    thump_rrr Well-Known Member

    I'm sorry but you are incorrect in stating that IMR4198 is made in Canada.
    At least the 1lb. bottle sitting in front of me purchased recently in Canada states the following
    "Manufactured In Australia, Packaged In USA"
  17. 243winxb

    243winxb Well-Known Member

    Last edited: May 4, 2013
  18. bigdaa

    bigdaa member

    Lee Precision Data: 50gr Jacketed projectile: 19.5 start, 21.5 max

    Speer Manual 14: Spitz SP or TNT HP 50gr: 20.0 start, 22.0 max

    Hodgdon: Speer SP 50gr: 19.5 start, 21.5 max
  19. balderclev

    balderclev Well-Known Member

    Starting lower because of a different recommended COL and different bullet type. Not sure how much difference that makes and wanted to be sure.
  20. cwbys4evr

    cwbys4evr Well-Known Member

    I recommend the printed 2013 Hodgdon Reloading Manual. It's magazine sized and about 10 bucks. This latest version has an article which may be helpful, on the differencea between H-4895 and IMR-4895. It also has a decent amount of load data for the IMR and the H versions.

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