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300 gr hornady .44 mag and 2400

Discussion in 'Handloading and Reloading' started by YellowCake, Jan 7, 2011.

  1. YellowCake

    YellowCake Member

    I want to use the lower crimp line on bullet to try to decrease head spacing but can't find good data. Speers as 18 of 2400 and hornady has 15.6 of 2400 but the hornady data is for the top crimp line.
  2. Wil Terry

    Wil Terry Well-Known Member

    WHAT does a "crimp line" have to do with " head spacing"??
  3. rcmodel

    rcmodel Member in memoriam

    I don't understand what you are trying to do?
    Bullet seating depth has nothing to do with a revolvers headspace.

    Are you saying seating to the second groove won't chamber?
    Or it sticks out the front of the cylinder?

    The lower cannulure is for use in some guns like Ruger revolvers and single-shots like the Thompson-Center Contender that will allow them to fit.
    Most all other .44 Mags will not chamber at that length, or the bullet will stick out the front of the cylinder and prevent it from turning, on a S&W for instance.

  4. YellowCake

    YellowCake Member

    Im want to use the lower cannulure in my ruger blackhawk. I did a test and it fits in my cylinder well.

    Just looked up headspacing. Completely wrong term. Sorry about that :eek:
  5. ljnowell

    ljnowell Well-Known Member

    That happens. I have a question, are you wanting to make the round longer or shorter? I kind of got confused in the post. If longer, it doesnt matter. If shorter, perhaps work up to the load you are wanting.

    I load 45 colt for a ruger blackhawk. I use a 300gr bullet from Missouri bullet with two crimp grooves. I have a load of 18.5gr of 2400in the bottom groove, stretched out longer. I also load 15 gr with the bullet loaded shorter, at the top groove. I find in my case, even though the revolver has long throats it shoots the shorter rounds better. They seem to have about equal recoil and boom factor, with the shorter one being slightly less.
  6. YellowCake

    YellowCake Member

    Awesome, that exactly want I was looking for.

    I've loaded the shorter one this week with 15.6 gr of 2400 with an oal of 1.60 which is the top groove. When I looked up more data I found some published 18-20 gr of 2400 while others published 15 - 16 gr of 2400 for the same round without a clear oal. Had a feeling it had to do with which groove I used.

    Thanks for the info ljnowell. Those bullets with an exposed groove line sure look nice :D
  7. 788Ham

    788Ham Well-Known Member

    I have a S&W 629-2, 6". Before I started loading the .300 grainer, I contacted Hornandy and ask them about the two cannulures on the bullet.

    "The bottom crimp groove is for loading in .44 mag loads. The top crimp groove is for .44 special loads." I received this e-mail from them a day or so later.

    ALSO ! In older .44 mags, such as my 629-2, Hornady, without the beefed up Recoil Package installed, they DO NOT recommend shooting the .300 grain bullet whatsoever !! Will not hold up to the pressures involved. USE AT YOUR OWN DISCRETION ! The newer .44 mag revolvers built, Hunter, etc., do have the recoil package installed, will handle this heavier bullet in reloading.
  8. rcmodel

    rcmodel Member in memoriam

    That's really odd.
    You couldn't even get it out of the barrel with the low pressure SAAMI .44 Special load data available.
    And Hornady certainly doesn't list load data for the 300 grain XTP in .44 Special.

    My recollection was it was intended for .44 Mag revolvers with long cylinders & single-shots like Contenders.
    And the .444 Marlin.

  9. 788Ham

    788Ham Well-Known Member


    This is what the answer that came back stated to me. If using enough powder for a mag load, it might be too compressed using the lower crimp ring? Just passing along info that was sent pard!
  10. 788Ham

    788Ham Well-Known Member


    I reloaded about 50 rounds of the .300 gr. bullet, they fired like a house afire, but after looking at how much my wrist ached afterward...... I "unloaded" about 30 of them! No need in tearing up my revolver.
  11. rcmodel

    rcmodel Member in memoriam

    I understand that, and I wasn't questioning that somebody at Hornady told you that.

    What I was questioning was if the guy who answered the phone and told you that knew what he was talking about.

    To my knowledge, neither Hornady or any powder manufacture has never ever published any load data for the .300 grain XTP in .44 Special.

    Last edited: Jan 7, 2011
  12. 788Ham

    788Ham Well-Known Member


    My friend, I cannot answer that question. Don't remember if that was a Friday I called...... or possibly a Monday....... can't remember.:banghead: Puzzler I know.

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