.308 Winchester Charge Needed [SMK 175, IMR 4064, Fed 215M, Lake City Brass]

Haust

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Apr 1, 2003
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Material availability being what it is, I load what I can find. That said, I've found myself with a few pounds of IMR 4064, Federal 215M primers, Lake City brass and SMK HPBT 175s. Does anyone have a recipe, for this combination?
 

JB5812

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Depends on your seating, but 43.5g should get you roughly 2,650 and a pretty stable load.. I haven't used it in a while as I have Varget and IMR4895, but I got decent results right around that charge.

Hope this helps some
 

afate45

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Anything between 41.5-43.5 will do the trick, but like JB said, depends on your seating. Also depends on your brass and case capacity. I think LC has less capacity than Lapua, but don't quote me on that.

Personally, I shoot the following 175 SMK load out of a Savage 10 FCP-SR (which has a shorter throat than a 700)

2.795oal
42.5gr of 4064
FGMM Primer
fired lapua brass, collet neck sized. Same load works with Hornady Match brass as well.
 

GhostFace

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    Anything between 41.5-43.5 will do the trick, but like JB said, depends on your seating. Also depends on your brass and case capacity. I think LC has less capacity than Lapua, but don't quote me on that.

    Personally, I shoot the following 175 SMK load out of a Savage 10 FCP-SR (which has a shorter throat than a 700)

    2.795oal
    42.5gr of 4064
    FGMM Primer
    fired lapua brass, collet neck sized. Same load works with Hornady Match brass as well.


    What's your velocity? I'm curous....
     

    crookedshot13

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    Jul 7, 2012
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    Rem AAC SD 20"
    70F around 1000DA using:

    43 gr 4064
    FGMM Brass
    CCI BR2
    2.800"

    This yields 2570FPS in my gun, 10STD.

    Pretty much a 175 FGMM duplicate.
     

    afate45

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    41.5 - 42.5 does the trick in my Savage 10 FCP-SR. 2.220 oal using a hornady comparator. 41.5 gives me 2600 FPS, 42.5 gives me 2650 with no pressure signs. This is 70 degrees. For comparison, 41.5 at 0 degrees gives me 2560fps.

    My savage has a fairly short chamber compared to remmys.
     

    Joey Dean

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    All the 308 LC brass I have has a decrease in volume compared to about any other type of brass that can get you in trouble fast. Duplicate loads using FGMM vs. LC brass had a full 0.6 gr difference.

    The good side is you can get an extra load or two out of a pound of powder.
     

    Emilio

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    I run a copy of the MK316 load. Shoots great out of both bolt and semi auto. 41.7gr of IMR 4064 in LC brass with 175SMK.
     

    NukeMMC

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    In my R700 with barrel setback and rechambered for M852/FGMM, I was shooting LC91 and LC93 Match brass, GM210M primer with 4064 behind a 175smk at 2.810" OAL and getting 2650 fps with sd of 7-9. Winter (40F and below) I use 42.6gr. Above 40F I use 42.4gr.
     

    GhostFace

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    41.5 - 42.5 does the trick in my Savage 10 FCP-SR. 2.220 oal using a hornady comparator. 41.5 gives me 2600 FPS, 42.5 gives me 2650 with no pressure signs. This is 70 degrees. For comparison, 41.5 at 0 degrees gives me 2560fps.

    Wow! That's not too bad a difference in velocity per the temp swing.
     

    jwp6114

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    Mar 8, 2008
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    WARNING... Above you mentioned fed 215 primers, everyone needs to take note those are magnum primers, so start 15% at least below book data for a standard primer... Careful, and more jump the safer...
     

    armydog

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    41.7 of IMR4064 in LC Match brass, WLR primers and 175 SMK work great in my 20" 308 Rem 700, solid hits at 1K .
     
    Last edited:

    Prophet78

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    I think it depends on your barrel twist rate. My 1:12 shoots ok between 45.2 and 43. I'm keeping my oal as close to 2.80.
     

    armydog

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    Armydog - what are you getting for velocity with this load?

    I'm embarrassed to say if I checked it I did not record it. I have been messing around with a number of loads and bullet weights but I do not see the data on that one. As soon as I get more 4064 and 175SMK's I will post it. Sorry, all I have now is 168SMKs and Varget to shoot.
     

    Hookman

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    I'm embarrassed to say if I checked it I did not record it. I have been messing around with a number of loads and bullet weights but I do not see the data on that one. As soon as I get more 4064 and 175SMK's I will post it. Sorry, all I have now is 168SMKs and Varget to shoot.

    No worries, a couple of weeks ago, I worked up a load using the same components from 41.5g - 43.0g in .3 grain increments and had some good results but I didn't chrono them. I'll go back and chrono the loads that shot the tightest groups. I'll post my results when I get that done.