HP-38 powder... Question.

This is a discussion on HP-38 powder... Question. within the Reloading forums, part of the Defensive Ammunition & Ballistics category; So I just started the whole process of reloading tonight! I found two pounds of HP-38 powder at LGS. Owner said it would be good ...

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Thread: HP-38 powder... Question.

  1. #1
    Member Array jabraun98's Avatar
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    HP-38 powder... Question.

    So I just started the whole process of reloading tonight! I found two pounds of HP-38 powder at LGS. Owner said it would be good for 9mm... I am using Winchester small pistol primers, 115grain Barry's bullets and federal cases... What's a good Amt of powder to use?
    Thanks in advance!

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  3. #2
    Member Array jabraun98's Avatar
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    I am posting this because it wasn't listed in my Lyman manual.
    Thanks again!

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    http://data.hodgdon.com/main_menu.asp

    This is Hodgdon's "cookbook" site. Only one load shown for jacketed bullets and one for lead... your Berry bullets (you did mean Berry, not Barry, right?) are plated and fall somewhere in between.
    Start on the low side and work up in small increments.

    Might be good to invest in another manual, too... I can't get by with just one.
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    I use HP-38 in my 9mm Mak, 9mm Para and .45 ACP loads with lead bullets. It meters exceptionally well and in all but the very lightest loads will not allow a bullet to seat with a double charge. It will produce a cleaner burn in the mid to upper range of suggested loads. For general range use, you'll find full loads do nothing but burn more powder.
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    Member Array jabraun98's Avatar
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    Thanks everyone! And yes I did mean berrys! Auto correct must have changed it or I typed it wrong!
    Thanks again
    Jabraun

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    I am not where I can consult load data, but if memory serves me correct , and with the burn rate of HP38, I believe 4.3 to 4.5 is a good place to start with the 115 grain bullet.
    Ignorance is a long way from stupid, but left unchecked, can get there real fast.

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    VIP Member Array high pockets's Avatar
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    Quote Originally Posted by glockman10mm View Post
    I am not where I can consult load data, but if memory serves me correct , and with the burn rate of HP38, I believe 4.3 to 4.5 is a good place to start with the 115 grain bullet.
    I use HP-38 almost exclusively in my 9mm loads, and I agree with glockman. My load is 4.5 gr HP-38 with Berry 115gr RN using WSP primers.

    Hodgdon's website is the best source for information. You could also contact Jay Phillips at Berry's Mfg. He supplied complete information to Hodgdon's, but they elected to put very little information concerning Berry's bullets in their latest manual. Jay used to be with Dillon Precision, he really knows his stuff.
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    Member Array Springer99's Avatar
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    Quote Originally Posted by glockman10mm View Post
    I am not where I can consult load data, but if memory serves me correct , and with the burn rate of HP38, I believe 4.3 to 4.5 is a good place to start with the 115 grain bullet.
    Yep, that's a good place to start. Also, check your manual and see if you have load recommendations listed for WW231. It's the same powder as HP38, under a different label.
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    Senior Member Array FLSlim's Avatar
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    The general guidance tends to be to load plated bullets using lead data if you have nothing else to go by. Second rule of thumb, if you have no data for your bullet weight and type, you can work up loads using data from the next heavier bullet of the same type. So, since you have the Lyman manual, it does list loads for 120 gr. lead for 231 (see previous comment on HP38) and that would give you a starting point for the Berrys' (although the start loads could be too light to function in a pistol). Start low and work up, loading small 10-20 round batches until you get a load that functions best in your gun.

    I've run through this realizing that you have good guidance already given by others, but someday my comments may come in handy with other loads.

    Good luck and be safe.
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    Member Array noylj's Avatar
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    1) As stated, go to Hodgdon.
    2) Plated is loaded like lead or, at most, mid-range jacketed not to exceed 1200 fps
    3) 231 = HP38
    4) You need at least two INDEPENDENT loading data sources so you can start with the lowest starting load, just to be safe. Never ever just take a load and NOT work up to it. All chambers and barrels are different and your specific lots of components are different than mine or the data sources. Safety first. Walk before running. Look both ways before crossing the street.
    5) Go to next heavier bullet
    Bullet Weight Powder Weight Velocity Note P.F. COL

    JHP 115 231/HP38 3.5 959 Start 110
    FMJ, JHP 115 231/HP38 4.1 1000 Start 115
    Barnes X-bullet 115 231/HP38 4.2 994 114 1.120
    JHP 115 231/HP38 4.3 1000 Start 115
    JHP, FMJ 115 231/HP38 4.3 1010 Start 116
    FMJ 115 231/HP38 4.4 1045 Start 120
    Hdy FMJ 115 231/HP38 4.4 1018 117
    Hdy FMJ 115 231/HP38 4.4 1116 128
    Hdy FMJ 115 231/HP38 4.4 1164 134
    Spr GD-HP, TMJ, JHP 115 231/HP38 4.5 1026 Start 118
    Barnes X-bullet 115 231/HP38 4.5 1128 Acc. 130 1.120
    JHP 115 231/HP38 4.5 1050 121
    JHP, FMJ, Spr GD-HP 115 231/HP38 4.6 1100 Start 127 1.090
    JHP 115 231/HP38 4.6 1089 125
    Spr Spr GD-HP 115 231/HP38 4.7 1075 Start 124 1.125
    J-all 115 231/HP38 4.7 1081 Start 124
    FMJ/JHP 115 231/HP38 4.7 1100 Max 127
    JHP, FMJ 115 231/HP38 4.8 1120 Max 129
    FMJ 115 231/HP38 4.9 1135 Max 131
    JHP 115 231/HP38 4.9 1253 Max 144

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    Member Array darkstar11's Avatar
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    My standard target load with Berry's bullets and HP-38 is 4.3 grains and CCI or WSP primers. Has never failed to cycle my Beretta or the wifes Ruger. You can get around 1400 loads per pound at this charge rate if I remember correctly.
    Libertas Vel Mors

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