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Thread: what was imr4895 originally made for?

  1. #1
    Boolit Master Oklahoma Rebel's Avatar
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    what was imr4895 originally made for?

    was it a service powder or made for reloaders? and if it was mad for the army what did they use it in? thanks!-Travis
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  2. #2
    Boolit Master Outpost75's Avatar
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    IMR4895 was formulated to load cal. .30 Ball M2 during WW2. Hodgdon Powder got its start selling surplus 4895 in brown paper bags. H4831 was salvaged from pulling down 20mm Oerlikon cannon ammunition.
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    Boolit Master Oklahoma Rebel's Avatar
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    boy I would love to have one of those!
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  4. #4
    Boolit Master JMax's Avatar
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    I used to buy it at Viking Arms on Reno St in Oklahoma City for a quarter a scoop back in the 60's. Did all or my rifle reloading with it and still use it today.

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    Boolit Master
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    I got the impression that it was developed around making the .30-06 cartridge launch a 152gr. FMJ bullet at 2800 + 50 f/s in the M1 Garand rifle, without bending its operating rod from excessive port pressure. In the process, it proved to be a rather versatile rifle propellant. It was also my impression that another company that was contracted to provide propellant for the same application devised a propellant later known as IMR-4064, for the same purpose, but I could have that wrong.
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    Boolit Master Char-Gar's Avatar
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    I started using surplus Hodgen 4895 in 1959 when it was $1.25 for a one pound can. I could also buy original Ball C at the same price, but I didn't like it as well.It is a very versatile powder. I still use it, but in the IMR label.
    Disclaimer: The above is not holy writ. It is just my opinion based on my experience and knowledge. Your mileage may vary.

  7. #7
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    I used it in the early 60's and would still use if the need arises,I am down to using tightgroup for all my loading now.One powder for everything from 380 to 45C
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  8. #8
    Boolit Master
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    IMR 4895 is my ONLY powder for 30 caliber loads and it works pretty well in some other applications.

    I used other powders but always came back to 4895 and eventually just stopped wandering around and settled on 4895. That was many years ago.

    I cannot intelligently answer the OP's question but I happily yield to Outpost75's knowledge.

  9. #9
    Boolit Master

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    Sorry to get off track,but is H4895 the same stuff?

  10. #10
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    Quote Originally Posted by tranders View Post
    Sorry to get off track,but is H4895 the same stuff?
    H4895 is pretty much the same as IMR4895 but is just a tudge faster burning in most top end applications. With cast bullet loads there's not much difference at all. H4895 is smaller kernelled and meters through powder measures more accurately. H4895 is also an "Extreme" powder so it is less susceptible to temperature variations. H4895 is made in Australia. IMR4895 is made in Canada.
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  11. #11
    Boolit Master


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    Quote Originally Posted by Kosh75287 View Post
    I got the impression that it was developed around making the .30-06 cartridge launch a 152gr. FMJ bullet at 2800 + 50 f/s in the M1 Garand rifle, without bending its operating rod from excessive port pressure. In the process, it proved to be a rather versatile rifle propellant. It was also my impression that another company that was contracted to provide propellant for the same application devised a propellant later known as IMR-4064, for the same purpose, but I could have that wrong.
    IMR4064 was introduced in 1935 before the advent of IMR4895. It had the general shape characteristics of 3031, I.E. long grains. While it was an excellent powder in the 30-06 with 150 - 180 gr bullets (at that time) it did not meter consistently through powder measures, especially those in automatic loading machines.

    Some believed 4895 was developed as a similar substitute powder that would measure consistently through the automated loading machines but I've seen no confirmation of that.
    Larry Gibson

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  12. #12
    Boolit Master

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    Quote Originally Posted by Larry Gibson View Post
    H4895 is pretty much the same as IMR4895 but is just a tudge faster burning in most top end applications. With cast bullet loads there's not much difference at all. H4895 is smaller kernelled and meters through powder measures more accurately. H4895 is also an "Extreme" powder so it is less susceptible to temperature variations. H4895 is made in Australia. IMR4895 is made in Canada.
    Thank you for the explanation. You are a wealth of knowledge.

  13. #13
    Boolit Master Oklahoma Rebel's Avatar
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    yeah,lots of knowledge round here! I didn't know h4895 was made in Australia , is all imr stuff made in Canada, and all hodgdon stuff made in Australia?
    Norinco SKS
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    Remington 597 22lr w/30 rnd clip
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    heritage 22lr/22mag

  14. #14
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    no they just moved production of many AADI [Australian defense industry's] powders to Canada.
    their burn rates slightly changed as did some of the colors of the powders.
    it's all an educated guess,,,, till the trigger is pulled.

    this opinion brought to you by mister low-tech solution..

  15. #15
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    Quote Originally Posted by runfiverun View Post
    no they just moved production of many AADI [Australian defense industry's] powders to Canada.
    their burn rates slightly changed as did some of the colors of the powders.
    Will help w/ availability but it makes things even more confusing when it comes to Hodgdon's line of powders. It's why I stick to a select few, most of which are made by St. Marks.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check