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New forum thread idea-Marksmanship

Discussion in 'Questions, Problems, & Feedback' started by DSbur, Mar 22, 2010.

  1. DSbur

    DSbur Vancouver WA Member

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    Is there any interest in this? Seems we all talk politics, loads, equipment, etc., but I can't pin down Q&A's for marksmanship. At the moment I'm having a terrible time with horizontal stringing on my hvy bbl .308 Remington. Would be nice to ask some of the target guys or tactical guys.

    After all, it's about hitting the target-
     
  2. MountainBear

    MountainBear Sweet Home, OR Well-Known Member

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    Good idea, but its often hard to figure without seeing your shooting position and other factors.
     
  3. ZeroRing

    ZeroRing 26th District, WA Active Member

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    LOTS of variables involved... perhaps a run down of what you are doing now would generate some responses that might help? :dunno:
     
  4. DSbur

    DSbur Vancouver WA Member

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    Remington 5R milspec .308, stock
    leather sandbag on mechanical rest in front, leather sandbag in rear
    Mark X pro trigger adjusted to 2.5#
    Falcon Menace 4-14ffp scope on Burris XTR low rings, EGW 1 piece 20moa mount

    Ladder test Varget, 42.9gr always seems to give less than .75" vertical dispersion at 300yds.
    Lapua brass, Fed. 210M primers, 175SMKs. Jump .11 (yeah, long throated remmy, Bergers won't shoot at all)
    2.810OAL, Redding neck sized .336 bushing, not checking for runout

    Winds calm, parallax corrected. All from bench.

    Tried 'wrap around' hold, hard hold pulling back into shoulder.

    After 200 rds I sometimes get the sweet groups, but mostly I get a horizontal stringing 2-3.5". The best groups when I'm right on measure less than 1.5" outside to outside, I'm happy with .5MOA on a factory rifle at 300yds, just can't figure out what to do to be consistent.

    And of course I get the frequent clover-leaf group only to blow it with a couple of wide horizontal dispersed shots-

    Dry firing practice with attention to cheek pressure currently in the works.

    The trigger isn't the greatest but at least I got it lightened up.

    Had someone teach me the finer points of checking parallax (moving my head around to check crosshair movement).

    I'm up for suggestions. It isn't bad for a factory rifle at all, I just can't seem to shoot it consistent. Unfortunately it's me, not the rifle!