Titan ReloadingGraf & SonsInline FabricationRotoMetals2
StainLess Steel MediaLee PrecisionADvertise here

Page 1 of 2 12 LastLast
Results 1 to 20 of 24

Thread: Imr 4895

  1. #1
    Boolit Master LAH's Avatar
    Join Date
    Mar 2005
    Location
    In The Hardwoods
    Posts
    2,467

    Imr 4895

    For several years I've used this powder for reduced loads [mostly 50% case capacity] in my rifles with any bullet. While I don't subscribe to Handloader Magazine anymore I do get the Wolfe Tracks Newsletter & the March edition has a download for Handloader March/April. I find this at the bottom of page 7:

    After my article “Reduced Rifle Loads” appeared in Handloader No. 306 (February 2017), Hodgdon contacted me with new information. After considerable testing, they recommend against using IMR-4895 for reduced loads, suggesting only H-4895 and Trail Boss
    . – John Barsness

    Guess I should contact Hodgdon.
    Joshua 1:9

  2. #2
    Boolit Master
    Bohica793's Avatar
    Join Date
    Aug 2013
    Location
    LA (Lower Alabama)
    Posts
    567
    Loved your article. Please keep us advised as I plan on using a lot of this data for load development.
    Protecting this country and it's communities isn't just the job of soldiers and police, but of every patriot who is capable.

  3. #3
    Boolit Master

    Join Date
    Apr 2014
    Location
    Oregon. Hate the politics, but love the weather!
    Posts
    1,808
    Doggone--IMR 4895 is the powder I'd most like to be marooned on a desert island with! If these warnings continue there won't be anything left that's safe to use. Just how much did they say is too little?

  4. #4
    Boolit Master Texas by God's Avatar
    Join Date
    Mar 2016
    Location
    Texas
    Posts
    3,082
    I've never even had any H4895- just IMR4895. I've always interchanged the data so I'm listening!
    Best,Thomas.

  5. #5
    Boolit Master FergusonTO35's Avatar
    Join Date
    May 2012
    Location
    Boonesborough, KY
    Posts
    3,416
    IMR 4895 is one of my favorites, 28 grains under a 150 grain boolit in .30 WCF works great in every rifle I have ever tried it in. I find that a lot of powders work superbly when loaded a couple of grains under the starting load. In addition to 4895, I've had good results doing this with 4064 and Varget. Now, there are reduced loads and there are REDUCED loads. I've never viewed a course grain medium burning rifle powder as a great choice for the latter. Unique and the dearly departed SR4759 work a lot better for that purpose.
    Currently casting and loading: .32 Auto, .380 Auto, .38 Special, 9X19, .357 Magnum, .257 Roberts, .30 WCF, .45-70 Gov't.

  6. #6
    Boolit Master

    rockrat's Avatar
    Join Date
    Aug 2005
    Posts
    3,434
    So, does Hodgdon make the IMR powders? If not, then could this be a bit of self serving to get handloaders to use their powder???

  7. #7
    Boolit Master
    runfiverun's Avatar
    Join Date
    Dec 2007
    Location
    soda springs Id.
    Posts
    27,843
    I have found the IMR version to be a little slower burning.
    every time I try the H-type I cannot get groups as good as I can with the IMR type.


    they'd probably throw up if they seen some of my 22-250 and 220 swift loads with the IMR type.
    it's all an educated guess,,,, till the trigger is pulled.

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

  8. #8
    Boolit Master

    Join Date
    Apr 2008
    Location
    Phoenix, Arizona
    Posts
    6,120
    Hodgdon sells IMR and Win. along with their brand. There is a reduced load formula on Hodgdon's website on using H4895. Make sure you use it with the published data from Hodgdon only.
    I use both IMR and H4895 and it seems there is a greater difference in the 2 now than there was previously. could just be my lot numbers though.

  9. #9
    Boolit Master Moleman-'s Avatar
    Join Date
    Jul 2016
    Location
    SW Michigan next to a winter wheat field
    Posts
    351
    Quote Originally Posted by rockrat View Post
    So, does Hodgdon make the IMR powders? If not, then could this be a bit of self serving to get handloaders to use their powder???
    Sort of like how if you buy a reloading manual from a powder company that lists their competitors powders theirs always has higher velocity and/or lower pressure?

  10. #10
    Boolit Master


    Kraschenbirn's Avatar
    Join Date
    Dec 2006
    Location
    East Central IL
    Posts
    2,281
    In the last 50-some years, I've probably loaded and shot more pounds of IMR4895 (and it's milsurp equivalents) than any other powder on the market...everything from 'powder-puff' CBs to M2 Ball duplication (lots of that!) to 'Omigod, need to back this down a grain or two' without blowing up anything but a lot of tin cans and milk jugs. Admittedly, H4895 meters better (through my B&M measure, anyway) but, like R5R, I get more consistent groups with IMR.

    Bill
    Last edited by Kraschenbirn; 03-06-2017 at 09:08 PM.
    "I'm not often right but I've never been wrong."

    Jimmy Buffett
    "Scarlet Begonias"

  11. #11
    Boolit Master
    Join Date
    Jun 2008
    Location
    Michigan
    Posts
    169
    Like others, have shot many many rounds with reduced loads of IMR 4895 and burned up a bunch last Summer. Would like to see specific reasons or is this marking ploy?

  12. #12
    Boolit Master
    oldblinddog's Avatar
    Join Date
    Feb 2015
    Location
    Texas
    Posts
    744
    This has nothing to do with marketing as they produce and sell both powders. The instructions on the reduced loads have ALWAYS stated that it applied to H4895 ONLY.​ Couldn't have been more plain.

    https://www.hodgdon.com/wp-content/u...ifle-loads.pdf

    Been that way more than 40 years that I know of.
    Last edited by oldblinddog; 03-06-2017 at 10:36 PM. Reason: Added link

  13. #13
    Boolit Master LAH's Avatar
    Join Date
    Mar 2005
    Location
    In The Hardwoods
    Posts
    2,467
    While I was still in the business the IMR tech gave me the 50% capacity rule. It wasn't Hodgdon. This is a new thing as it said in the article.
    Joshua 1:9

  14. #14
    Boolit Master LAH's Avatar
    Join Date
    Mar 2005
    Location
    In The Hardwoods
    Posts
    2,467
    Quote Originally Posted by oldblinddog View Post
    This has nothing to do with marketing as they produce and sell both powders. The instructions on the reduced loads have ALWAYS stated that it applied to H4895 ONLY.​ Couldn't have been more plain.

    https://www.hodgdon.com/wp-content/u...ifle-loads.pdf

    Been that way more than 40 years that I know of.
    Thanks for the link. Hodgdon acquired IMR Powder Company in 2003. I was given the information from them [IMR] before that time I'm sure. I've never used H-4895 so had no reason to check their information. The powder I'm using at present came from a 55 gallon drum purchased years ago by Melvin Forbes if memory serves. Again thanks for the link.
    Joshua 1:9

  15. #15
    Boolit Master
    smokeywolf's Avatar
    Join Date
    Jan 2011
    Location
    Too far west of where I should be.
    Posts
    3,228
    Been dropping IMR 4895 in 30-06, 30-40 and few others for the better part of a half century. It's got to be the most predictable smokeless powder ever produced.
    A well regulated militia, being necessary to the security of a free State, the right of the People to keep and bear arms *shall not be infringed*.

    "The greatest danger to American freedom is a government that ignores the Constitution."
    - Thomas Jefferson

    "While the people have property, arms in their hands, and only a spark of noble spirit, the most corrupt Congress must be mad to form any project of tyranny."
    - Rev. Nicholas Collin, Fayetteville Gazette (N.C.), October 12, 1789

  16. #16
    Boolit Master Uncle Jimbo's Avatar
    Join Date
    Jan 2012
    Posts
    453
    Quote Originally Posted by smokeywolf View Post
    Been dropping IMR 4895 in 30-06, 30-40 and few others for the better part of a half century. It's got to be the most predictable smokeless powder ever produced.

    I too have used it in 30-06 and 22-250 for over half a century in the 06 and a half century this year in the 22-250. Never found a reason to change.

  17. #17
    Boolit Master
    oldblinddog's Avatar
    Join Date
    Feb 2015
    Location
    Texas
    Posts
    744
    Quote Originally Posted by smokeywolf View Post
    Been dropping IMR 4895 in 30-06, 30-40 and few others for the better part of a half century. It's got to be the most predictable smokeless powder ever produced.
    I'm sure it is.

  18. #18
    Boolit Master

    Shiloh's Avatar
    Join Date
    May 2006
    Location
    Upper Midwest
    Posts
    6,352
    Gone light with IMR 4895 with no issues at all.

    Shiloh
    Je suis Charlie

    "A society of sheep must in time beget a government of wolves."
    Bertrand de Jouvenel

    “Any government that does not trust its citizens with firearms is either a tyranny, or planning to become one.” – Joseph P. Martino

    “If you put the federal government in charge of the Sahara Desert , in five years there would be a shortage of sand.” – Milton Friedman

    "Ideas are more powerful than guns. We would not let our enemies have guns; why should we let them have ideas?" - J. Stalin

  19. #19
    Boolit Master


    Larry Gibson's Avatar
    Join Date
    Jul 2005
    Location
    Lake Havasu City, Arizona
    Posts
    15,794
    I also have shot a lot of H4895, IMR4895 and milsurp 4895 (IMR) over the years. Right now I have 50+ lbs of the IMR and 10+ lbs of the Hodgdon in my powder magazine. I shoot it with cast and jacketed bullets in every thing from 222 Rem up through the 375 H&H and 45-70. When I shot NRA HP with M1903s, M14s and M1As in was my preferred powder for match loads. Since the late '60s 4895 has been my mainstay with most medium to heavy cast bullets in a plethora of cartridges.


    I've been chronographing with Oehlers since the mid 70's. I have found with "reduced" loads either powder works very well. It s with "light" loads (those in the 40 - 60% +/- load density) that the H4895 works better than IMR4895. The difference is simply a matter of performance as thorough pressure testing in numerous 30, 31 and 8mm cartridges has shown there to be no safety problems. The difference also is simplistic; every powder has a certain psi that it ignites and begins to burn efficiently at and H4895 ignites and burns efficiently at a slightly lower pressure than does IMR4895. H4895 is also slightly faster burning than IMR4895. In the .308W for example with a 168 or 157 MK bullet H4895 will develop the same velocity with 1 - 2 +/- gr less powder than IMR4895. Also 4895, especially milsurp lots, has an acceptance burning rate variation of 10% max. That's why some lots of milsurp 4895 are actually closer to 4064 in burning rate.

    The original H4895 was milsurp IMR 4895. Back in the day I would go into one hardware store that had large barrels of it and by 5 lbs in a paper bag for less than a dollar a pound. When the supply ran out Hodgdon began having it made. The new commercial H4895 was/is very consistent lot to lot and when I started buying it the cost was $1.75 for the old 1 lb cardboard squarish "can".

    BTW; with a Dacron filler light loads of either H4895 or IMR4895 ignite and burn efficiently negating any differences. Thus I use a lot of milsurp IMR4895 with a Dacron filler in most rifle cartridge when using medium to heavy weight cast bullets.

    Larry Gibson

  20. #20
    Boolit Master LAH's Avatar
    Join Date
    Mar 2005
    Location
    In The Hardwoods
    Posts
    2,467
    Thanks Larry. I know that's a bunch of typing & your valuable time. I surely appreciate the effort.
    Joshua 1:9

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
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