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Thread: 2400's behavior in larger rifle cases

  1. #21
    Boolit Master

    Rcmaveric's Avatar
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    Lol, imagine the look on that bullets face when it gets smacked so hard it breaks the sound barrier in nano seconds.

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  2. #22
    Boolit Man
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    Ideal #38 (1951) shows 22.0 of 2400 under the 308284 (207 gn) cast 1750 fps.

    Lyman#3 (1980) shows 19.0 of 2400 under the 308284 (207 gn) cast 1562 fps, 23400 CUP; 26.5, 1968 fps, 35000 CUP.

    Lyman Handbook of Cast Bullets (1958) shows 13.0 of 2400 under 311299 at 1425, Max of 24.0 at 2060.

    Lyman 1958 also states that H-240 and 2400 are interchangeable.

    That's all I got. Hope it helps or at least doesn't make things worse.

  3. #23
    Boolit Master

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    With my experience using 2400 in larger cases, I always started losing accuracy long before I would have any pressure problems.
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  4. #24
    Boolit Master Savvy Jack's Avatar
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    1934 Hercules 2400 Booklet

    Click image for larger version. 

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  5. #25
    Boolit Buddy
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    I remember reading of an old "armoury load" that consisted of 16.0/2400/ over 150 gr. cast. I think it was for 200 yard training of reserve troops. There's an art to making large capacity cases run well on very fast-burning rifle powders, like 2400, and I've never mastered it.
    If memory serves, IMR-3031 was about the fastest-burning rifle propellant that gave full performance in .30-06 (though perhaps not with cast projectiles as heavy as yours). Consult Hodgdon before you try this, but I'D try to locate some IMR-3031 or any propellant with approximately that burn speed, find the STARTING load for projectiles weighing near what your NOE #311299 does, load 5 or 10 of those, and test fire them. Depending on results, I'd then work DOWNward, in 0.5-1.0 gr. increments, until you get velocity and accuracy that works for you.
    THESE days, I know the difficulty and expense associated with finding and buying another powder for just one or a few projects, but I don't see you getting much in the way of good results with 2400 in .30-06. If your were trying this with a .45-70, which has a capacity (and little else) very similar to the .30-06, I'D expect you to be in good territory. I guess bottle-necking a case introduces a way-different set of dynamics to the way that fast-burning propellants ignite in big cases.
    For in much wisdom is much grief: and he that increaseth knowledge increaseth sorrow. Ecclesiastes 1:18
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  6. #26
    Boolit Master
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    I'm no expert but from the limited experience I have from trying different things. ive had good luck with decent accuracy in 30-06 311299 using slower powders, 4198, 8208, 4895.

  7. #27
    Boolit Master 243winxb's Avatar
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    2400-24 grs- 173 gr cast GC, 30-06 . Better accuracy with IMR 4895 reduced.

  8. #28
    Boolit Master

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    Quote Originally Posted by Savvy Jack View Post
    1934 Hercules 2400 Booklet

    Click image for larger version. 

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    That’s cool! Several folks are having good luck with Blue Dot and reduced jacketed loads. Haven’t heard much about higher pressure 2400 and jacketed (just Ed’s 16gr load), wonder if it works just as well or even better.

  9. #29
    Boolit Master
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    Paco Kelly's load of 22 gr. @ 2400 pushing a 400ish grain Boolits is wonderful in the .458 WM.

  10. #30
    Boolit Master

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    2400 is a very useful powder in the 30-06 and other 7-8mm cartridges. The following link is a sticky in the Military Rifles section. The author, C. E. Harris, is known as Outpost 75 here, IIRC.

    https://castboolits.gunloads.com/sho...Rifles-Article
    "We take a thousand moments for granted thinking there will be a thousand more to come. Each day, each breath, each beat of your heart is a gift. Live with love & joy, tomorrow is not promised to anyone......"

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  11. #31
    Boolit Buddy todd9.3x57's Avatar
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    i use 2400 in my 35/30 and 444 marlin, but i use a tuft of dacron. it is more accurate with dacron.
    used to be 444ttd

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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