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Powders for 7mm Remington Magnum

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  #8  
Unread 06-11-2012, 10:20 AM
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Re: Powders for 7mm Remington Magnum

H1000 or Retumbo behind Berger 140 VLD, 168 VLD or 180 VLDs.

The H1000 has produced the most consistant loads (single digit ES, 8) while Retumbo has higher velocities. I cannot get any Retumbo load to have an ES lower than 40.

I've taken whitetails, feral pigs and coyotes with these loads and everyone that was hit, went down without a complaint. The ranges were 200y to just over 700y.

When I run out of Retumbo, I will just be using H1000 because of the consistancy issue.
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  •   #9  
    Unread 06-11-2012, 04:25 PM
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    Re: Powders for 7mm Remington Magnum

    My vote goes to the 168 berger or 160 accubond and H4831sc with CCI BR2s or WLRPs.
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      #10  
    Unread 06-11-2012, 09:17 PM
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    Re: Powders for 7mm Remington Magnum

    Thanks a bunch guys

    Here are some Quickload numbers for the 7mm RM
    sierra 160 Gameking
    COAL 3.290
    H2O case capacity 82.00 gns
    filling ratio 103.7%
    71.0 gn H1000
    55400psi
    Propellant burnt 99.35%
    3019fps

    So how does this compare to real world numbers. Keep it coming!!!
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    Remington 700 5R .308 Win
    Leupold Mark 4 6.5-20x50 LR/T Illum. TMR Reticle

    Browming X-Bolt .30-06
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    Remington Sendero 7mm RM
    Nightforce 5.5-22 x 56
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      #11  
    Unread 06-11-2012, 09:21 PM
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    Re: Powders for 7mm Remington Magnum

    Here are some numbers for H4831sc

    sierra 160 Gameking
    COAL 3.290
    H2O case capacity 82.00 gns
    filling ratio 95.3%
    66.7 gn H4831sc
    59437psi
    Propellant burnt 99.05%
    3019fps


    It looks like H1000 can get the same velocity but at a lower pressure.
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    Remington 700 5R .308 Win
    Leupold Mark 4 6.5-20x50 LR/T Illum. TMR Reticle

    Browming X-Bolt .30-06
    Nikon Monarch SF 4-16

    Remington Sendero 7mm RM
    Nightforce 5.5-22 x 56
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      #12  
    Unread 06-12-2012, 08:20 AM
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    Re: Powders for 7mm Remington Magnum

    Real world numbers, 24" 9.25 twist, 162 amax 67.5grns H4831sc, fed210m, federal case, oal of 3.405", touching the lands, 3036fps avg 8 fps ES, same combo but with 72.5grns H1000 and a 215m primer, 3039 avg 22fps ES.
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      #13  
    Unread 06-12-2012, 09:18 AM
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    Join Date: Mar 2012
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    Re: Powders for 7mm Remington Magnum

    For deer my rifle likes 67.0 grns IMR7828 with a win mag primer and 150 ETIP I seat the bullet out to OAL 3.460 this OAL seats the bullet against the rifleing when chambered. This is a 1 holer 3 shot group at 100yrds.
    This fall I am hopeing on a moose trip to Newfoundland and have some 175 grn partition points so, I will be bussy working up a load for that. Any sudgestions for the 175 grn is helpfull
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      #14  
    Unread 06-12-2012, 10:18 AM
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    Join Date: Apr 2012
    Location: The cold part of Montana
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    Re: Powders for 7mm Remington Magnum

    Quote:
    Originally Posted by g0rd0 View Post
    For deer my rifle likes 67.0 grns IMR7828 with a win mag primer and 150 ETIP I seat the bullet out to OAL 3.460 this OAL seats the bullet against the rifleing when chambered. This is a 1 holer 3 shot group at 100yrds.
    This fall I am hopeing on a moose trip to Newfoundland and have some 175 grn partition points so, I will be bussy working up a load for that. Any sudgestions for the 175 grn is helpfull
    Nosler manual:175gr Partition: Most accurate powder tested, most accurate charge
    62.5gr rl22
    CCI250

    Goes end to end on elk
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    Keep in mind the animals we shoot for food and display are not bullet proof. Contrary to popular belief, they bleed and die just like they did a hundred years ago. Being competent with a given rifle is far more important than impressive ballistics and poor shootability. High velocity misses never put a steak in the freezer.

    Joe
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