7mm Rem Mag, H1000, 168VLD & Quickload

Discussion in 'Reloading' started by txsendero, Oct 4, 2010.

  1. txsendero

    txsendero Well-Known Member

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    7mm REM MAG, H1000, 168 VLD, and Quickload

    Hoping that one of my fellow longrangehunters with quickload could run the data including barrel time, for 7mm Rem Mag with 26" barrel, 168 grain Berger VLD, 3.433" OAL, with HODGDON H1000 powder.

    I had a good load with Retumbo, but now I'm out of it, and I've got 8 lbs of H1000 so I thought I would try it.
    It seems like this is a pretty popular combination, so I'm sure others would like to see this info as well.
    Thanks.
     
    Last edited: Oct 7, 2010

  2. Derek M.

    Derek M. Well-Known Member

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    My Shilen barreled 700 likes H1000 with that bullet a tad better than Retumbo. My bbl is 24" though. It's a #4 contour.
     

  3. jrw1976

    jrw1976 Well-Known Member

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    I would like to see this data as well.



    Jason
     
  4. AKHunterNorthPole

    AKHunterNorthPole New Member

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    QL data for 168g Berger with H1000:
    start load 66.0g, velocity 2826, max load 69.5 velocity 2987 fill ratio 100.1%.
     
  5. LouBoyd

    LouBoyd Well-Known Member

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    TXSendero:
    168 Berger VLD. (no moly) OAL 3.433, 7mm RM. 26" barrel. Hodgdon H1000.
    Using your input data and otherwise using Quickload database defaults:
    Case fill - 102% (compressed load) 69.47 grain
    peak pressure 54161 psi 87% SAAMI max
    Muz V 2935 fps
    Muz P 12051 psi

    102% is arbitrary for a maximum compressed load. I like to keep case fills between 95% and 98% where possible. In my opinion H1000 is a bit burning for this combination of bullet, cartridge, and seating depth. It's certainly usable but it would not be my first choice.

    My choice is IMR-7828 for shooting 168 Bergers from my 7mm Rem Mag 26" barrel Win 70 Laredo. It works well for me.

    No one (including Quickload) can tell you what load will give best accuracy in your rifle but it can greatly reduce the testing of combinations which aren't likely to give good results.
     
    Last edited: Oct 6, 2010
  6. txsendero

    txsendero Well-Known Member

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    Thanks LouBoyd and others for the info. I'm sure other powders will work for the 7Mag, but since I have 8 lbs of the H1000 I'm sure going to give it a try. I was just looking for a starting place to begin load development and the info given so far will help much.
     
  7. kiwi3006

    kiwi3006 Well-Known Member

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    In my 26" barreled 7mm rem mag I am using
    72gr H1000
    Federal case
    Federal 215 primer
    168 Berger 0.010" into the lands
    3060 fps.

    No pressure signs.
    With this load I have taken red deer at 590, 545, 445 yds and a pig at 476 yds.

    Stu.
     
  8. txsendero

    txsendero Well-Known Member

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    For what it's worth, I happened to look in the Lyman 48th Edition Reloading Manual, and it listed a max load of 73 grains in the 7mm RM with H1000 for a 168 SPBT. I doubt if I'll go that high, but I was going to try up to maybe 71.5 or 72 grains, depending on what the gun & brass & chrono shows me when I start the load development.
     
  9. 260shooter

    260shooter Well-Known Member

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    I shoot a 26" Broughton 9 twist 168 Berger, 70.5 gr of H-1000, FED 210M, in a Win case at 3035 fps with no pressure signs.

    260
     
  10. sydleier

    sydleier Member

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    Stu did you find that loading the bullets to the lands has improved your accuracy over seating them right up to the Lands? I've been slowly working the 180's and 168's up to the lands, but never into them.
     
  11. kiwi3006

    kiwi3006 Well-Known Member

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    I have only tried the one seating depth.
    Up until recently I have not had the tools to accurately measure seating depth, so I just keep seating the projectile slightly deeper until the lands just left a mark on the projectile.
    I do intend to try the berger method of 0.01 into lands 0.04 off lands, 0.08 off lands and 0.12 off lands and see what happens.

    Stu.
     
  12. 260shooter

    260shooter Well-Known Member

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    I found accuracy at .040 off.
     
  13. moombaskier

    moombaskier Well-Known Member

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    Hey TX, I sent you a pm some time back. Anyhow, I'm using 72.0, Win. case, 215m, .010" off the lands in my Rem. 700. The stoney point gauge length is 2.723". The 71.5-72.5 were all good, so I took the middle one. I'm getting 3030fps and incredible accuracy. Good luck.