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Thread: powder question

  1. #1
    GunLoad Trainee
    Join Date
    Jan 2009
    Posts
    3

    Default powder question

    I have imr 4895 powder and the reloading data I have for the rifle I have is
    for H4895 powder. I am reloading a k-31 swiss 7.5x55. I bought the imr orginally for reloading a .303 british and just got a die for the swiss rifle and want to reload for the rifle and the load data uses hodgon powder. what is the difference to the two powders and any info would be helpful. I am reloading nosler 125 grain and 150 grain bullets does anyone have data on the imr4895 for the 7.5 swiss rifle. help please.

  2. #2
    Dogs Like Him versifier's Avatar
    Join Date
    Dec 2005
    Location
    New Hampshire
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    1,854

    Default

    Welcome to the Guide garbear.

    The data for IMR 4895 and H4895 powders DOES NOT INTERCHANGE.
    You need to buy a couple of good current loading manuals. Think of them as inexpensive life insurance because they are.

    I do not think you will be happy with the accuracy of lighter bullets in your K31. Mine doesn't like anything lighter than 150gr, but it really likes heavy cast bullets 180-190gr best. I have not tried anything with a jacket heavier than 150 & 165gr, and it liked them, too.

    Here is some data for you from the Sierra Manual:

    7.5x55 Swiss 125gr jacketed, IMR 4895
    2700 41.5
    2800 43.2
    2900 44.9
    3000 46.6 MAX

    7.5x55 Swiss 15ogr jacketed, IMR 4895
    2400 38.5
    2500 40.5
    2600 42.5
    2700 44.5
    2800 46.5 MAX
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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        

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