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Thread: H 4350

  1. #1
    Boolit Buddy
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    Jun 2019
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    H 4350

    I favor H4350 over IMR 4350 in short action cases,like 7mm08,and IMR over H in long action like 270. It seems to me that velocity is better ,and accuracy just as good with H in my 7mm08 than it is with IMR. I'm not talking about overly hot loads either. I have the Lyman 49 the edition,and they have H4350 in their burn rate chart,but of all the data I have looked at in the book they list no loads using H,but plenty using IMR. I use the Hodgdon online data a lot,and they do list it in many loads. Is H relatively new,and just not as much printed load info for it,or is there another reason for IMR to seem to be favored? I have been loading for about 7 years,and I bought some not too long after I started.

  2. #2
    Boolit Buddy lawdog941's Avatar
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    I had the same thing with 243 and 270. Did some tests with different powders in that speed group and luckily found IMR 4451 suited both well. Always keep the H/I 4350's available, but like streamlining the powder supply. Used the Hodgdon website, dropped it 2 grains and worked up to accuracy, usually the high node near max.

  3. #3
    Boolit Buddy

    NC_JEFF's Avatar
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    I really like H4350 in 30-06, 54gr is has served me well for a long time sing jscketed bullets. I don't have any loads using either 4350 with cast boolits.

  4. #4
    Boolit Grand Master


    Larry Gibson's Avatar
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    You might want to read; http://castboolits.gunloads.com/show...Manual-Error-B

    Over the last 2+ years I've pressure tested several different lots of H4350 and there appears to be a pretty wide variation lot to lot. I've found using IMR4350 data with H4350 is best other than any published data.
    Larry Gibson

    “Deficient observation is merely a form of ignorance and responsible for the many morbid notions and foolish ideas prevailing.”
    ― Nikola Tesla

  5. #5
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    Texas by God's Avatar
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    I've had good results from IMR 4350 for 45+ years so I've never even bought any other brand of 4350. Same with 4895 and 4831. Weird.

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  6. #6
    Boolit Master



    TNsailorman's Avatar
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    I have been using IMR 4350 for over 50 years and it is the best load I have found for the 30-06, except for the M1 Garand and with it I use IMR4895. I tried a pound of the H4350 many years ago and it did not give me as good of result as the IMR4350. I never use cast in the 30-06, so I can't speak for those. my experience anyway, james

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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