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.308 Primer Recommendation

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  #1  
Unread 05-30-2012, 10:00 PM
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.308 Primer Recommendation

I have been shooting 168gr SMKs out to 700 yards with the below recipe.

Brass - Win
Primer - Win LR
Powder - Varget 46 gr.

I recently bought 175 SMKs to try out to 1000 yards. At the same time I decided to purchase Lapua brass to work up with this new load to try and tighthen up the brass inconsistancies. I have 2 boxes of CCI BR2 LR primers on hand, I would like to know if you would recommend using those or just sticking with the Winchester primers?
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  •   #2  
    Unread 05-30-2012, 10:14 PM
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    Re: .308 Primer Recommendation

    CCI BR2 primers are great as are Fed210Ms. The military "sniper" round it seems your looking to duplicate is Lake City brass (similar in capacity to Lapua) 41.5grns Imr4895 and CCI #34 mil spec primers. Imr4895 is a better choice for the 175 smk IMO.
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      #3  
    Unread 05-30-2012, 11:18 PM
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    Re: .308 Primer Recommendation

    +1

    You should always back down a hair and work up when changing components.

    But, BR2 and 210M are great primers for your objective.
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      #4  
    Unread 05-31-2012, 06:11 AM
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    Re: .308 Primer Recommendation

    I get excellent results with the 175 SMKs with Lapua brass and 42 gr. of Varget with Fed210M. My results with Varget were the same using Win LR, BR2, and 210M primers. I found when using IMR 4895 in the same charge weight that similiar results were consistantly achieved using Win LR primers. The others did not shoot as well in my Rem Mil Spec. The Varget appeared to be less temperature sensitive than IMR4895. It would be a good idea to test the different primers. Also, I found that the Winchester brass is thinner than the Lapua brass and had to adjust my neck tension in the dye.
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      #5  
    Unread 05-31-2012, 08:41 AM
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    Re: .308 Primer Recommendation

    Wolff primers have for several years been the favorite for top level competitors with the .308. And IMR4064 has the best accuracy track record with a .308 case holding bullets from 160 through 190 grains. Varget and IMR4895 are great for bullets from 130 up to 160 grains in a .308.

    You'll need to shoot at least 15 to 20 shots per test group to begin to see the difference. Any less shots per test group ain't all that reliable. If you shoot two groups and they're not the same size, you're not shooting enough rounds in each to be meaningful. It all depends on how much confidence one wants to have with their load.
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      #6  
    Unread 05-31-2012, 01:04 PM
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    Re: .308 Primer Recommendation

    Just did an internet search and it sure seems like alot of people are using Varget with this combo.

    I think I'll try it first just to see with the Federal 210M primer. I would try the BR2s but they are harder to find around here and if I got a good load with them I could be screwed.

    BTW, I saw where people had AOL @ 2.802-2.810". Is this so they will fit in the magazine? Because mine are 2.945" but don't fit in the mag..... they just shoot better.
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      #7  
    Unread 05-31-2012, 01:26 PM
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    Re: .308 Primer Recommendation

    Quote:
    Originally Posted by scsims View Post
    Just did an internet search and it sure seems like alot of people are using Varget with this combo.

    I think I'll try it first just to see with the Federal 210M primer. I would try the BR2s but they are harder to find around here and if I got a good load with them I could be screwed.

    BTW, I saw where people had AOL @ 2.802-2.810". Is this so they will fit in the magazine? Because mine are 2.945" but don't fit in the mag..... they just shoot better.
    Mine are 2.10 because they fit the mag, but I was also able to get excellent accuracy at this seating depth. Bullet jump is .180".
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