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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 Buddy
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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
    1934 Hercules 2400 Booklet

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  5. #25
    Boolit Master
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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

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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 Grand 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
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  11. #31
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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.

  12. #32
    Boolit Master

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    Quote Originally Posted by Hamish View Post
    2400 works best in small cases with maximum fill. It acts a little hinky in big cases and minimal fill.
    Can you define “hinky”? Is that erratic ignition, pressure spikes, or something else?

  13. #33
    Quote Originally Posted by Silvercreek Farmer View Post
    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.
    Certainly would be interesting to see the results. Always did like the 30-06, wish I still had my 742.

  14. #34
    Boolit Master TurnipEaterDown's Avatar
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    It was pretty easy for me to find good results w/ 30-06 & 2400.
    Old (very nicely) sporterized Springfield A3.
    I didn't dive these very hard at all, and started with the 'military case, 16 gr 2400, normal weight bullet' generic approach.

    30-06
    183 gr Sized .310" (as cast, lubed, checked) LYMAN 311291, Alliant 2400, F210 primer, seated w/ bottom of 1st riding band just below mouth (neck covers grease groove)
    (22 BHN w/ LBT tester)

    The multiple groups at 17.4 were the verification of group sizes for what I selected as a useful load for me.

    15.3 gr 1.625" (5/5) 1.1875 (4/5) 100 yd
    16 gr 1.875" (5/5) 1.625 (4/5) 100 yd
    16.7 gr 2.0" (5/5) 0.875 (4/5) 100 yd
    17.4 gr 1.375" (5/5) 0.75 (4/5) 100 yd
    17.4 gr 1.375" (5/5) 1.375 (4/5)* 100 yd * -- Lost stick on 1" aim point after shot #2, aimed on larger (~3") black circle
    17.4 gr 3.125 (10/10), 2.375" (8/10) 1.125 (best 5) 100 yd
    18 gr 1.625" (5/5) 1.2 (4/5)* 100 yd * -- 3 touching

  15. #35
    Boolit Master
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    18gn 2400 works well in my 308 no fillers needed. in my 45-70 i use 22gn with 350 gn boolit but use a bit of toilet paper to keep powder next to the primer .without the filler got a lot of speed difference and a few hang fires.

  16. #36
    1937 data for a 35 Remington
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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