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Bought wrong powder

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

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  1. balderclev

    balderclev Member

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    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

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    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.

    http://www.hodgdon.com/basic-manual-inquiry.html

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

    rc
     
  3. 45lcshooter

    45lcshooter Member

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    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 Member

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    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 Member

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    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 Member

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    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 Member

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    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 Member

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    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 Member

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    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 Member

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  11. billybob44

    billybob44 Member

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  12. Kevin Rohrer

    Kevin Rohrer Member

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  13. Arbo

    Arbo Member

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

    Steve C Member

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    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 Member

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    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 Member

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    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 Member

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    Last edited: May 4, 2013
  18. bigdaa

    bigdaa member

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    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 Member

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    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 Member

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    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.
     
  21. balderclev

    balderclev Member

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    I already know how to handle powders. A material safety data sheet does not give me starting loads:confused:
     
  22. Ken70

    Ken70 Member

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    SAAMI, the group that is supposed to regulate the ammunition business, should have never accepted powders with different burn rates to have the same number. That is so incredibly stupid, it makes my teeth hurt. I see this question over and over. Just think of the people that didn't ask or didn't know you can't substitute them for each other.

    You have to wonder; what were they thinking?
     
  23. ljnowell

    ljnowell Member

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    Boy RC, a guy who is normally right makes the slightest mistake and people line up to nail you to the cross dont they? One of my favorite parts of a forum is that even when three other people point out a mistake the next three posters still feel the need to post it too, lol.
     
  24. ArchAngelCD

    ArchAngelCD Member

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    It was reported a few years ago Hodgdon was going to discontinue IMR4198 in favor of H4198 because they were so close in performance both were redundant. It seems they might have decided to keep both because even though 4198 was removed from the IMR site for a while back then it's back on the site.

    I like the Hodgdon variant a little better and the same holds true for all the Hodgdon/IMR twins like 4350 and 4895.
     
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