Some range time...

orkan

orkan

Primal Rights, Inc.
Banned !
Minuteman
    • Oct 27, 2008
    4,267
    4,011
    South Dakota, USA
    www.primalrights.com
    #1
    Spent yesterday afternoon with the chrono on the twins. Figured I'd share the results.

    IMG_2055.jpg


    IMG_2058.jpg


    Those 1" squares look pretty big through the nightforce!
    IMG_2063.jpg


    100yds view.
    IMG_2065.jpg


    Rifles:
    Remington 700 SPS Tactical .308 - 20" 1-12 twist -- Nightforce NXS 5.5-22x50
    Remington 700 SPS Tactical .223 - 20" 1-9 twist -- Leupold VX-III 4.5-14x40 LR

    Range Conditions:
    Temp - 70f
    Wind - 30mph
    Angle - 6 Oclock
    Elevation - 1250

    -------------------------------------------------------------
    168gr Nosler Ballistic Tip
    43.5gr Varget
    CCI BR2
    LC LR 07
    O.A.L. - 2.845
    ogive. - 2.190

    5-shot Group (fps)
    2552
    2516
    2543
    2535
    2533
    ES - 36
    AV - 2535fps

    IMG_2068.jpg

    -------------------------------------------------------------
    168gr SMK
    43.5gr Varget
    CCI BR2
    LC LR 07
    O.A.L. - 2.788
    ogive. - 2.198

    5-shot Group (fps)
    2566
    2554
    2576
    2558
    2570
    ES - 22
    AV - 2565

    IMG_2069.jpg

    -------------------------------------------------------------
    168gr SMK
    42gr Varget
    CCI BR2
    LC LR 07
    O.A.L. - 2.788
    ogive. - 2.198

    5-shot Group (fps)
    2481
    2482
    2469
    2483
    2437
    ES - 46
    AV - 2470

    IMG_2070.jpg

    -------------------------------------------------------------
    175gr SMK
    43.5gr Varget
    CCI BR2
    LC LR 07
    O.A.L. - 2.788
    ogive. - 2.198

    5-shot Group (fps)
    2577
    2544
    2545
    2548
    2552
    ES - 33
    AV - 2553

    IMG_2072.jpg

    -------------------------------------------------------------
    175gr SMK
    42gr Varget
    CCI BR2
    LC LR 07
    O.A.L. - 2.788
    ogive. - 2.198

    5-shot Group (fps)
    2453
    2441
    2460
    2440
    2435
    ES - 25
    AV - 2445

    IMG_2071.jpg

    -------------------------------------------------------------

    I wont even bother listing the chrono data for the .223... since I can't get enough varget into these little cases to get things going fast enough. Here are some groups for the hell of it.

    group 1

    group 2

    group 3

    group 4

    group 5
     
    #2
    Re: Some range time...

    good shooting there but if i may...i think you could possibly tighten things up with a smidge more speed. i am not a compressed load speed freak but your chrony data is slow for those loads. maybe get into the 2600 range.fwiw
     
    #5
    Re: Some range time...

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: dgunn</div><div class="ubbcode-body">good shooting there but if i may...i think you could possibly tighten things up with a smidge more speed. i am not a compressed load speed freak but your chrony data is slow for those loads. maybe get into the 2600 range.fwiw </div></div>

    I tried 44gr of varget and my groups started opening up. Do I dare put more than 44gr in that LC LR brass? I'm seeing no pressure signs at 44... but the brass is thick and I am not showing any signs in the primer either.

    I will add my rifle specs and field conditions to the original post at the top.

    20" 1-12 twist, stock sps tactical barrel.

    Wind was blowing 30-35mph from 6 O'Clock. temp - 70f
     
    #6
    Re: Some range time...

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jakermeister</div><div class="ubbcode-body">dgunn what was your COAL? </div></div>

    2.797
     
    #7
    Re: Some range time...

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: orkan</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: dgunn</div><div class="ubbcode-body">good shooting there but if i may...i think you could possibly tighten things up with a smidge more speed. i am not a compressed load speed freak but your chrony data is slow for those loads. maybe get into the 2600 range.fwiw </div></div>

    I tried 44gr of varget and my groups started opening up. Do I dare put more than 44gr in that LC LR brass? I'm seeing no pressure signs at 44... but the brass is thick and I am not showing any signs in the primer either.

    I will add my rifle specs and field conditions to the original post at the top.

    20" 1-12 twist, stock sps tactical barrel.

    Wind was blowing 30-35mph from 6 O'Clock. temp - 70f </div></div>

    ahhh...the 20 incher has you slowed up alittle. i was wondering considering i am usually getting 2690ish from 43.5 varget. i don't know on going much above 44gr as i am not a big fan of beating the hell out of stuff for 50fps. maybe a primer like the m-34 would help. i use them with lc match brass and varget. same load as posted is 43gr even with m-34 primer.
     
    #13
    Re: Some range time...

    Don't feel bad about your velocities. In my 20" LTR (.308) I'm getting 2625 fps using;

    46.0gr Varget
    168 SMK @ ~2.835" OAL
    CCI BR2
    Win brass

    At 46.5 groups opened up and at 47.0 I experienced sticky bolt lift and only moderately higher velocities.
     
    #14
    Re: Some range time...

    I have a custom Remington 700 with a 25" Bartlein 5R barrel. You are going to get a bit more velocity out of a custom barrel. A factory Remington barrel will be a fair bit slower. I would expect at least 2680 out of this load from a factory barrel though. As always, work up your loads with caution.
     
    #16
    Re: Some range time...

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: sawgunner2001</div><div class="ubbcode-body">Don't feel bad about your velocities. In my 20" LTR (.308) I'm getting 2625 fps using;

    46.0gr Varget
    168 SMK @ ~2.835" OAL
    CCI BR2
    Win brass

    At 46.5 groups opened up and at 47.0 I experienced sticky bolt lift and only moderately higher velocities. </div></div>

    This just goes to show the differences in the same type of gun.

    In my LTR I use 45.5 grains of Varget with 168 AMAX's and I am getting 2730 fps. I can get a consistent 1/2" to 3/4" any more or less Varget and I open up.
     
    #17
    Re: Some range time...

    I was at the range with my LTR Saturday. I was shooting 175 SMK moly's at an average of 2685 out of FGMM brass with 44.5gr of H4895. Does that sound about right? Accuracy was good, holding about .5 moa 5 shot groups at 100.
     
    #18
    Re: Some range time...

    Shooting at the good old Huron gunrange I see. How do you like the Hogue stocks that come with the sps tacticals.

    I have the 223 tactical with a mark 4 6.5-20x50 mildot Mark 4 rings and bases with a H-s Precsion Police stock and a reworked trigger.
     
    #20
    Re: Some range time...

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: orkan</div><div class="ubbcode-body">Well, based on an average of 2550, I'll be able to take a 175SMK to 1000yds with 41 minutes in the gun. Would you say that is acceptable until I get a new barrel?

    </div></div>

    Yes, that is more than acceptable. You really don't need more than 20 inches of barrel in a 308 to get out to the 1k mark. Practice as much as you can with the barrel you have, as there is no substitute for trigger time.
     
    #21
    Re: Some range time...

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: beretta989</div><div class="ubbcode-body">Shooting at the good old Huron gunrange I see. How do you like the Hogue stocks that come with the sps tacticals.
    </div></div>
    Yup, huron is right! You from around here?

    I don't like those hogue stocks at all. The forend moves around when I lay it on the bags or the bipod, and comes in contact with the barrel. Not to mention, I can FEEL it flex when I steer the rifle. The gun shoots... but I feel very confident that it will shoot BETTER when I get a real stock on there.

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: flashhole</div><div class="ubbcode-body">orkan - I like that bench top. Did you make it? If yes, got any pointers for others who might want to make one like it? </div></div>

    I didn't make it, but I know how it was made. Make wood concrete form about 4" or thicker. Mix up some concrete and pour it in. Grade it off nice and smooth and let it setup. Then, concrete some steel tubing vertical in the ground and level them off. Weld some pegs on the top of them just long enough to get into the concrete. Drill some matching holes in the concrete and set it on there.
    smile.gif
    Done.
     
    #22
    Re: Some range time...

    Well I went back to the range with the chrono again today.

    Shot 8 more five shot groups. I tried setting the 168's out farther with a 2.250 to ogive instead of 2.190. They reacted badly.

    Out of all the groups, there is no doubt that 42gr shoots better than anything else I've found thus far with both 175SMK and 168SMK. The only down side is that I'm averaging 2480fps with the 42gr varget load. Its what the gun likes apparently. Veeeeery slow. I was really hoping to be above 2600... and even closer to 2700 if possible. Doesn't look like I'm going to get the job done with this setup. I'll probably be around 2450fps with the suppressor on.

    Quite the learning experience.
     
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