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Thread: H-322 & Hornady 55gr FMJ

  1. #1
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    H-322 & Hornady 55gr FMJ

    I need a bit of advice..I'm wanting to load the above, But the newer hornady manual shows 23.1 as max..(using a Rem700 and a 26"bbl)A older loadbook that has a section for AR-15 loads(using a Colt with a 20"bbl 1/7 twist) shows h-322 going up to.. 24.3 as max..I know you can go a little hotter than 23.1.. I was thinking of using 23.3gr, as I've done a search and read a few other people using it with good results in their AR's. This would be used in a AR with a 5.56 chamber (DD barrel) Has anyone use 23.3? Results?
    There's a race of men who don't fit in, A race that can't stay still, So, they break the hearts of kith and kin, and roam the world at will..

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    Hodgdons shows 23.1gr as max for a Speer 55gr SP.
    Work it up and check for signs of pressure.
    Last edited by polymorpheous; 05-14-13 at 18:05.
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

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    Markm works with h322 a lot. Maybe he has some info, most of what I have seen he loads 77 smk with this powder though.

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    H-322 & Hornady 55gr FMJ

    I've loaded 55gr to Markm's 77gr load wich is 21.6 grns with no issues in my DD. Smooth load but cycles fine.

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    Man... It's almost a crime to load that good powder with 55 grain bullets... but if that's all you have in the current market...

    I've never tried it with many light bullets. 69s and 77s love it though.
    "You people have too much time on your hands." - scottryan

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    H-322 & Hornady 55gr FMJ

    I know what you mean. I had a guilt trip myself loading them. H322 was the only powder I could find at the moment so bought 6# worth and got to it. Btw that 77gr load groups very well thanks.

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    There's no price difference... but it's still a bummer.
    "You people have too much time on your hands." - scottryan

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    Quote Originally Posted by markm View Post
    Man... It's almost a crime to load that good powder with 55 grain bullets... but if that's all you have in the current market...

    I've never tried it with many light bullets. 69s and 77s love it though.

    Well, I called Serria (who's data I was using) and asked them about using 23.3gr H322 and 55gr hornady..and the tech told me he didn't see a problem with it.. and it should be fine.. I'm going out and run some over a crono here in a little while..
    Markm, I understand what you're saying about the bullets.. unfortunately, these are all I could find,
    Last edited by ralph; 05-15-13 at 09:23.
    There's a race of men who don't fit in, A race that can't stay still, So, they break the hearts of kith and kin, and roam the world at will..

  9. #9
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    I hear you... they're good bullets to have in 55 fmj. No sadness in owning those at all.
    "You people have too much time on your hands." - scottryan

  10. #10
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    Well, I just got back from the range...I'm happy to report there were no problems observed with this load, cases showed no signs of high pressure and everything worked normally.
    here's the numbers from the crono..
    1.2862 Lo2773
    2.2812 Hi2890
    3.2850 Av2838
    4.2890 ES 157.3
    5.2773 SD49.52
    6.2796
    7.2864
    8.2886
    9.2812
    10.2871
    I did shoot 10rnds at 50yds for accuracy.. It wasn't bad by any means.. The rounds were stringing horzionally...due mainly I figure, to winds gusting about 10-15mph plus..one string of five measures 1 3/8" ctr-ctr in length and a 1 1/4 wide ctr-ctr. The other measures 1 7/8" in length and probably 1/2" wide.. One thing I did mention to the tech at Serria was the fact that both Hornady and Hogdon both stop at 23.1..His reply was "Yeah, I know, I don't know why they do that". The tech also told me to call him back if I had any problems.. The rifle I used was a DD with a DD 16" pencil bbl, 1/7 twist.
    Last edited by ralph; 05-15-13 at 12:16.
    There's a race of men who don't fit in, A race that can't stay still, So, they break the hearts of kith and kin, and roam the world at will..

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