IMR 4227 vs. H4227?

Discussion in 'The Powder Keg' started by billy, Dec 11, 2007.

  1. billy

    billy G&G Evangelist Forum Contributor

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    are these interchangable?
    i have read that they are very close.
    i want to use this IMR4227 for .454casull loads with a 250 gr. hardcast LRNFP bullet.
    as always thank you for your time.
    bill

    I FOUND THIS.
    does this make any sense to anybody?


    Dear Hodgdon,
    I was reading in the February Handloader magazine about IMR/H-4227 and wanted to ask about it.
    > According to R.H VanDenburg. Jr. February 2006 Handloader Pg. 26 ... "With the availability of its new Lil'Gun powder, Hodgdon doesn't promote 4227 for use in the .410 shotshell any more but IMR does. It performs well in both 2 1/2- and 3-inch shell with traditional payloads and velocities. It may require a somewhat heavier powder charge than some of the newer .410 powders, but patterning is generally excellent.
    >
    > All that said, with the recent purchase of the IMR Powder Company by the Hodgdon Powder Company came the realization that IMR-4227 outsells H-4227 by a very wide margin. Consequently, I've been informed that sometime in 2006, as supplies run out, there will be no more H-4227. IMR-4227 will continue on serving handloaders as it has since 1935. Supplies of both will no doubt be on dealers' shelves for some time to come, be forewarned. " "

    Then at a gun forum I found this:
    Here's bad news on the IMR-4227.......Hodgdon is doing away with it and IMR-4198 and renaming H4198 as IMR-4198 and H4227 as IMR-4227, both powders marked "made in Australia". So the 2 original IMR powders will cease to exist. The powder that Hodgdon has been selling as H4198 is ADI's AR2207 and H4227 is ADI's AR2205, have been all along, apparently. This change was confirmed by Jackfish at MO by phone yesterday with Hodgdon. The details of how they deal with IMR-4198 and IMR-4227 load data has to be worked out yet.

    The man that posted that told me this:

    Someone sure doesn't know what the heck they're talking about. I posted
    that same statement by VanDenburg on the MarlinOwners.com Bigbore forum,
    there's a thread there on H4198 and IMR4198. Mac11700 called Hodgdon a
    couple days ago and talked to Ron, he told Mac that H4227 and IMR-4227
    are the same powders!!!! Who knows what the heck it going on there. I
    guess when it happens later this year, we'll know the truth, until then
    it's anyone's guess!!

    Can anyone shed light on this issue, as I may want to stalk up?
    The reply is thus:
    The product name H 4227 has been discontinued. All future lots of IMR 4227 will be manufactured by ADI in Australia. It will look about the same as the old IMR 4227 but will have the advantage of being unaffected by changes in temperature like the Hodgdon line of Extruded Powders.

    Within the next year or so ADI will also begin manufacturing IMR 4198. It of course will also be unaffected by changes in temperature. To the best of my knowledge H4198 in it's current form will continue in the Hodgdon Line.

    Mike Daly
    Customer Satisfaction Manager
    Hodgdon Powder Company/ IMR Powder Company
    Last edited: Dec 11, 2007
  2. Mooseman684

    Mooseman684 G&G Newbie

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    Billy...Look in the powder section of the Speer reloading Manual...H4227 and IMR 4227 have the same burn rate and are interchangeable....as is IMR 4198 and H4198....so is H4895 and IMR 4895.... Now that being said...IMR 4831 is Faster burning than H4831 and as such are NOT interchangeable....
    Rich
  3. billy

    billy G&G Evangelist Forum Contributor

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    i just wrote hogdon and asked em what the difference was and for load info.:09:

    so if a load recipe says h4227 just pretend it says IMR 4227?
    Last edited: Dec 11, 2007
  4. Mooseman684

    Mooseman684 G&G Newbie

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    That is what the Speer manual says...Grain for grain !
  5. billy

    billy G&G Evangelist Forum Contributor

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    do you have one of those headaches yet?
    :09:
  6. samuel

    samuel G&G Newbie

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    I load .22 Hornet with both IMR4227 and H4227,a hornet is so fussy 1/10th of a grain will make a difference in POI at 100yds.I use the same load of either and it shoots to the same poi. sam.
  7. Sparkytfl

    Sparkytfl G&G Newbie

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    They're seriously going to rename a powder with a different one's name? Isn't that a bit dangerous? I've dealt with both brands of 4895 and they're certainly not the same.
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