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Thread: Reloading question

  1. #1

    Reloading question

    My starting load grouped at 2" as the powder charged increased the group spread to 6" at max load. With the heavey bullets start load was 3" and increased to about 7" At max load.


    Cal 25 06, bullets sierra 100gr, hornady 117gr, powder H4350 barrel 22". bullets seated 3thou off.

    Is there anything obvious that might help with this combination ??

    Thought powder might soot lighter bullet. ??

  2. #2
    John

    Two questions:

    What range were you shooting at?
    How do you get on with factory ammo at this range?

    I don't see H4350 listed in my Hornady manual for either of these bullets. I think you need to check your reloading manual and pick another powder. Note 'A 4350' is not the same as H4350.

    Regards

    JCS
    Last edited by jcampbellsmith; 05-01-2014 at 15:23.

  3. #3
    I thought JCS would know the answer to this one!!

  4. #4
    With a 100gn Sierra Prohunter 1620 bullet, you should achieve good sensible groups with 50gns Hodgdon H4350 OAL of cartridge measured using a comparator is 2.875ins.

    .25-06 rifles are usually a 1-10 twist barrel and in my view will need a different propellant, perhaps IMR4831 to drive a 117gn bullet.

    Use normal work-up load procedures to get to the charge that best suits your rifle. ATB
    Last edited by deeangeo; 05-01-2014 at 16:45.
    Blaser K95 Luxus Kipplaufbüchse .25-06Rem. Zeiss 8x56, 110gn Nosler Accubond = Game Over!

  5. #5
    Quote Originally Posted by jcampbellsmith View Post
    John

    Two questions:

    What range were you shooting at?
    How do you get on with factory ammo at this range?

    I don't see H4350 listed in my Hornady manual for either of these bullets. I think you need to check your reloading manual and pick another powder. Note 'A 4350' is not the same as H4350.

    Regards

    JCS
    The range was 100 meters, factory federal was pretty good shot about 1"

    I was meant top buy IMR 4350 but managed to leave the shop with H4350. I found my loads in the Lee Manuel and Hodgdon web site. Think your right I need a different powder

    Regards

    John

  6. #6
    When my Sako was a 25-06, (hammer forged chromolly barrel), the Hornady 117gr round nosed bullets woul group to 1/2 MOA. These were seated about 10 thou off the lands. From memory I was using Vn160, but any middle of the range load seemed to well.

  7. #7
    Quote Originally Posted by john444334 View Post
    The range was 100 meters, factory federal was pretty good shot about 1"

    I was meant top buy IMR 4350 but managed to leave the shop with H4350. I found my loads in the Lee Manuel and Hodgdon web site. Think your right I need a different powder

    Regards

    John
    H4350 is a good powder for the 25-06 and that bullet weight. Are you really three thousandths of an inch off of the lands?? How much bullet is actually in the case neck? I'm guessing not much.~Muir

  8. #8
    Quote Originally Posted by Muir View Post
    H4350 is a good powder for the 25-06 and that bullet weight. Are you really three thousandths of an inch off of the lands?? How much bullet is actually in the case neck? I'm guessing not much.~Muir
    Yes. the first dozen were spot on. The rest were between 3 and 5 thousandths. 100gr oal to ogive 2.740 and 117gr oal to ogive 2.730 this might give you an idear. John

  9. #9
    Quote Originally Posted by john444334 View Post
    Yes. the first dozen were spot on. The rest were between 3 and 5 thousandths. 100gr oal to ogive 2.740 and 117gr oal to ogive 2.730 this might give you an idear. John
    Huh!
    Is your rifle custom? At those lengths the 117's are seated at least a .200" under COL according to Hornady. (depending on the bullet) ~Muir

    (All COL's start at 3.050")

  10. #10
    Quote Originally Posted by john444334 View Post
    My starting load grouped at 2" as the powder charged increased the group spread to 6" at max load. With the heavey bullets start load was 3" and increased to about 7" At max load.

    Cal 25 06, bullets sierra 100gr, hornady 117gr, powder H4350 barrel 22". bullets seated 3thou off.

    Is there anything obvious that might help with this combination ??

    Thought powder might soot lighter bullet. ??
    First thing I would suggest is to change only one variable, and that coincidentally at no extra cost: seating depth. Prepare three further batches, seated at 10, 20, and 30 thou' off the lands and see how it performs. You may be very surprised. Ten rounds each, two groups of five.

    Here's something to bear in mind. When you've shot a three-round group and let's say it's 3/4 inch ctc, the only thing of which you can be certain when you fire your fourth shot is this: that group isn't going to get any smaller than 3/4 inch.

    -JMS

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