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Thread: 7mm rem mag load data

  1. #1

    7mm rem mag load data

    Morning all,

    does anyone have the maximum load data for 162gr AMAX and 162gr SST using Vit 165?

    The rifle has a 26" barrel.

    TIA

  2. #2
    The Vit manual ed. 8 with a 160gr speer lists 68.1 as a max load.

  3. #3
    yes, but if you compare it to the Naturalis, there is a big difference in usable powder weight. Hopefully, if someone has access to a Hornady manual, I will get the required answer.

    Thanks

  4. #4
    This won't answer your question but be prepared for a bit of meat damage with the 162 SST unless shooting at extended ranges. My load was with a stout charge of H4831 not n165

  5. #5
    Planning using amax really but I have both bullets, so wanted to cover all scenarios.

  6. #6
    Quote Originally Posted by redandroe View Post
    yes, but if you compare it to the Naturalis, there is a big difference in usable powder weight. Hopefully, if someone has access to a Hornady manual, I will get the required answer.

    Thanks

    its a guide at best
    your brass could be considerably thinner or thicker than whatever they used
    Even the Hornady manual is not going to give you anything definitive.


    the 168gr data has an upper end of 63.9 compared to
    the 160gr natralis of 63gr so you know that is a moderate charge
    when you compare it to the 160gr grand slam upper end of 68gr

    There is a 9 grain spread on the 160gr Grand slam data from 59 to 68
    162gr is not enough of an increase to make too much difference if you are working up a load anyway. its less than 2%
    you could get more variation from a primer or brass selection


    I wouldn't be running groups of 5 for each 0.2-0.5gr level to find out, thats a kilo gone right there!!!
    You will likely want to run them towards the upper end of the charge range (or whats the point of the RM) bear in mind Vit data is on the luke warm side now compared to previous editions

    If I was approaching this I would run the first 5 or 6 grains of that spread in 1gr increments looking for nothing else but pressure signs
    Your precision loads are going to be in the upper end between 61-62gr and 65-67gr

    1x 59gr
    1x 60gr
    1x 61gr
    1x 62gr
    1x 63gr
    3x 63.5
    3x 64gr
    3x 64.5gr
    3x 65gr
    3x 65.5gr
    3x 66gr
    3x 66.5gr
    3x 67gr

    you should see obvious points where you can then go back and bracket the load to fine tune it
    say you get a smaller group at 65.5gr
    go back and do: 65.2, 65.4, 65.6, 65.8, or smaller increments if you can/want
    if you really want/need to then you can tweak OAL within the one charge level that shows the most promise.
    I rarely do unless its very fussy



    10,4 160 Naturalis Lapua 81,8 3.220
    N165 3,65 56.3 786 2579 4,08 63.0 868 2848
    10,4 160 Grand Slam Speer 82,0 3.228
    N165 3,83 59.1 812 2664 4,41 68.1 909 2982
    10,9 168 HPBT Sierra 83,5 3.287
    N165 3,61 55.7 788 2585 4,14 63.9 853 2799
    Last edited by bewsher500; 08-05-2016 at 09:01.

  7. #7
    Thanks Bewsher,
    that was more what I was looking for and it is what I have done in the past; it is notable seeing the differences between the Vit and hornady data. The Hornady site has 58gr of Vit165 for the 162ELD-X.

    I started yesterday with 60gr throwing a SST (my last rifle was 68.7gr of V165) just to start to break the barrel in before I start the real work of load development. To my surprise, with no load development and a bullet seated well off the lands I managed a 0.091 centre to centre 3 shot group. I will chrono that first just to see what I am getting but do prefer to work up to the higher end.

  8. #8
    Quote Originally Posted by redandroe View Post
    Thanks Bewsher,
    that was more what I was looking for and it is what I have done in the past; it is notable seeing the differences between the Vit and hornady data. The Hornady site has 58gr of Vit165 for the 162ELD-X.

    I started yesterday with 60gr throwing a SST (my last rifle was 68.7gr of V165) just to start to break the barrel in before I start the real work of load development. To my surprise, with no load development and a bullet seated well off the lands I managed a 0.091 centre to centre 3 shot group. I will chrono that first just to see what I am getting but do prefer to work up to the higher end.

    good start
    I don't know where the lands are in any of my rifles!
    its a myth that factory rifles only shoot well if you are banging the lands on chambering

    my 300wm 208gr amax loads are the only ones that are long...and that is mainly due to the 1.5" bullet taking up too much space for the 78gr charge to fit in!

  9. #9
    Quote Originally Posted by redandroe View Post
    Morning all,

    does anyone have the maximum load data for 162gr AMAX and 162gr SST using Vit 165?

    The rifle has a 26" barrel.

    TIA
    If you want what Hornady says, Vhit N-165 starts at 52.7 and tops at 62.3 grains.
    I agree with Bewsher about the distance to the lands. ~Muir

  10. #10
    Thanks Muir,
    I knew someone out there would have the info. Best I chromo what I started with and see if that is roughly what I am looking for. Hopefully, if that is going around 2800, then I will be happy.

    Thanks for the replies guys.

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