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Thread: 30-06 load question.

  1. #1

    30-06 load question.

    I am trying to load a starting load for a friends 30-06, I had some 150gr FMJ spitzers around and also some 150gr FN's so thought I'd try these.I have loaded the spitzers with a starting load from the Lee manual of 49.2gr of IMR4320 and the FN's with 50gr IMR 4320 and seated both bullets to the cannelure.The spitzers are 3.20" OAL and the FN's are 3.03" OAL, I then noticed the lee manual for the 150gr jacketed bullets shows a min OAL of 3.25"...Am I ok to use what I have loaded? The 3.25" seems very long but I'm wondering if it is just the difference in bullet type in the lee manual from what I have loaded.See pics below...They will be fired from an M1 Garand. (Invade it makes a difference)Thanks in advance.Gixer
    Attached Thumbnails Attached Thumbnails image.jpg   image.jpg  

  2. #2
    A starting load would be 46.0 gr of IMR-4320. Depending on the brass, 50.0 might be max for some rifles.

    A 147 to 150-gr FMJ should have an OAL of 3.185" to start. Get the charge adjusted, and then play with moving the OAL to 3.20. As you know, not all bullets have the same profile, so the OAL had some room for dialing in, if you like.

    Soft points have even more different profiles, especially the nose, so OAL becomes more nebulous. So they run at 3.20 to 3.24 inches. Start at 3.20".

    Where is be base of that soft point bullet in the neck? Is it a flat base? The base should be about even with the bottom of the neck.

    Get that FMJ shooting pretty well, and seat the soft point bullets with the same die setting, and see where that puts the cannelure.

    Don't worry too much about a big jump to the lands. Look at the 125-gr loads. Most are a lot shorter, and they shoot great, and in the Garand and in matches.

  3. #3
    Did you full length resize?? ~Muir

  4. #4
    Quote Originally Posted by Southern View Post
    A starting load would be 46.0 gr of IMR-4320. Depending on the brass, 50.0 might be max for some rifles.

    A 147 to 150-gr FMJ should have an OAL of 3.185" to start. Get the charge adjusted, and then play with moving the OAL to 3.20. As you know, not all bullets have the same profile, so the OAL had some room for dialing in, if you like.

    Soft points have even more different profiles, especially the nose, so OAL becomes more nebulous. So they run at 3.20 to 3.24 inches. Start at 3.20".

    Where is be base of that soft point bullet in the neck? Is it a flat base? The base should be about even with the bottom of the neck.

    Get that FMJ shooting pretty well, and seat the soft point bullets with the same die setting, and see where that puts the cannelure.

    Don't worry too much about a big jump to the lands. Look at the 125-gr loads. Most are a lot shorter, and they shoot great, and in the Garand and in matches.

    Thanks, for the info, the starting load was listed in the lee manual as 49gr of IMR4320 (you can see it on the second line down of the pic I posted) with a max of 52.3gr.

    the brass was only neck sized with a lee loader.

    so in light of the above will I be ok to shoot these?

    regards,
    gixer

  5. #5
    Oh, sure, shoot them. They as still under 60,000 psi.. I don't have my current Hodgdon manual in front of me. It is always good to work off updated manuals, as powders change.

  6. #6
    I pulled out some 1972 Lake City ammo, and measured them. The 150-gr FMJBT and the 173-gr were were both, 3.320 inches, all 10 of each that I measured.

  7. #7
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    There are many powders suitable for rifles like the M1 Garland but several that are not and will damage it. I think that no "slow" powder...H4831....is suitable as something to do with the gas pressure when it reaches the transfer hole to operate the piston. And if a "slow" powder the residual pressure being enough to bend the piston rod?

    Some say H4350 is the "slowest" safe powder or IMR4064? I can't recall if that is correct info BUT any good US Forum...Accurate Reloading, say, will be a place to look.

  8. #8
    For a Garand, you want a powder which peaks early, so the gas pressure is at the right level when the bullet passes the bleed hole farther down the barrel, past the end of the hand guard. 4064 and 4895 are very good for the M1 Garand. 4350 is too slow, and 4831 worse, too hard on the operating rod. But any powder to be be loaded up too hot for the Garand, that is, too much pressure and too high of a gas volume.

    The same is true of the M14, and FAL, in that the actual velocities of USGI and NATO ammunition is well under the book advertised speeds for bolt actions with 24 inch barrels. No problem, because it is fast enough, and the sights on the M1 an M14 especially are very good and calibrated out to very long range.

    I can give you almost all the GI loads and replicate loads for the .30 US and the 7.62x51mm, in original powders, subsequent powders, and contemporary powders. I have the printed manuals and specifications, and ammo going back to 1904, to break apart and examine.
    Last edited by Southern; 25-01-2015 at 01:52.

  9. #9
    So would IMR 4320 be ok at that load and OAL?

    i pulled the 150gr spitzers and reseated them at 3.253" still with the 49gr of powder.

    as he just wants to try a few I have also made up the .308 150gr FN's, with 50gr of powder and 3.03" OAL.

    he just wants to see how it compares to the mil spec rounds he has for accuracy as he is thinking about starting reloading.

    thanks for all the input so far.

    Regards,
    Gixer

  10. #10
    Sure, give it a whirl a 3.253". That is a good length for 150s, and you are giving your 4320 a little more space.

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