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10m zero for a m-14

Discussion in 'Rifle Country' started by infantryman21, Mar 15, 2006.

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  1. infantryman21

    infantryman21 Member

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    Im currently in the military and deployed the ranges we have are only for 10meters im trying to zero my m-14 at 10m so im good out to at least 300m is there any way this can be done. The only target i found was for a 25meter zero that was only good out to 250m but the probably is once again we only have a 10m range please help
     
  2. rangerruck

    rangerruck Member

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    it would be my guess, that if you were slightly lower to no more than 1/2inch lower than that target at 10 meters, that you will be on out to 300. because the bullet path is about 1/2 inch to an inch below you line of site, you are only giving it 10 meters to come up and meet your eyesight line. that is a pretty quick and steep angle. that is why im guessing slightly below the target zero.
     
  3. gearbox

    gearbox Member

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    No offense to you, but shouldn't your fearless leaders be giving you the opportunity to sight in your arms? I may not be too keen on what is going on over there, but I feel that practice and familiarity can only be a good thing.

    Either way, best of luck!
     
  4. jobu07

    jobu07 Member

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    I'm not pointing fingers or making accusations but i'm just genuinely curious of what your M.O.S. that you were issued an M-14. Lucky guy!
     
  5. Langenator

    Langenator Member

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    I'm guessing his handle should be an indicator of his MOS. Infantry is 11 series, mostly 11B (also available: C for mortars, M for mechanized, Z for 1SGs and SGM/CSMs).

    It sounds like he got to where his unit will be operating, either in Iraq or Afghanistan, and got issued an M14 there. And the only range available to zero it on is a 10m range, possibly a pistol range or some such that used to belong to the Saddam regime.
     
  6. AirForceShooter

    AirForceShooter Member

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    shoulda , woulda, coulda.
    You work with what you have.
    The 1/2 inch up should do it.

    AFS
     
  7. Dave P

    Dave P Member

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    I guess that the sights are .8" above bore.

    Quikload says at 30 yrds you will be 1.8" high, when zeroed for 300 yards.
     
  8. GunnySkox

    GunnySkox Member

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    Dave P,

    Does the program you mentioned do meters as well? If so, it'd probably be better/more helpful to post/use ranges in meters, as those're the ranges Infantryman needs.

    ~GnSx
    Not down on anybody, just trying to be helpful
     
  9. Bartholomew Roberts

    Bartholomew Roberts Moderator Emeritus

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    100M = 109yds, so 10M =10.9yds.

    For all practical purposes you can use yards the same as meters under 100yds because even the finest shooters in the world aren't going to be able to tell the difference between a gun sighted in at 10M and a gun sighted in at 10yds.
     
  10. 30Cal

    30Cal Member

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    Sight height = 1.09"
    M80 Vel = 2750fps
    M80 BC = 0.39
    M80 bullet weight = 147grs

    For a 200yd zero, you want the bullet to hit 0.5" below point of aim at 10m. For a 300yd zero, that would be .25" low at 10m. The bullet will cross above the line of sight at around 20yds.

    At 10m, one click is worth 0.1"

    This is all out the window if the rifle is scoped of course.

    Ty
     
  11. Turk

    Turk Member

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    Correct me if I'm wrong but I'm not aware of any slots (MOS) being issued M-14 currently? Even in 68-69 in RVN the only troops being issued 14's were combat engineers and some support units.

    Turk

    Remember to pray for our troops.
     
  12. asknight

    asknight Member

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    Turk, I've read a few reports that some squads are issuing their Designated Marksmen M-14's. I can't confirm this, as all of the "reports" that I read were on the internet. :)
     
  13. infantryman21

    infantryman21 Member

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    IM GOING TO BE USING A SCOPE WITH 1/4 MOA

    MY FEARLESS LEADERS ARE NOT THAT SMART AND I HAVE TO FIND OUT ON MY OWN. ALSO IM A 11B INFANTRY AND IM A DESIGNATED MARKSMAN THE PROBABLY IS THE UNIT IS NOT WELL EQUIPED SO I HAVE TO PURCHASE MY OWN EQUIPMENT. AND YES THE M-14 IS A BEAUTIFUL WEAPON.
     
  14. Northwet

    Northwet Member

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    M-14 sight adjustment

    You're not looking for a 300 meter zero with a M-14.
    I carried one in basic training (circa 1969) and the 25 meter sighting in was one inch high at that range.
    At an estimated (remember you're using eyeballs, not a range meter in combat) 300 yards you aim for the head with impact in the chest area of a man-sized target. For closer ranges it was center of chest.
    The M-14 is a fine and accurate rifle; I just didn't enjoy running in formation holding that heavy rifle above my head.
    To clean it, we would strip field strip it and take the barrel/receiver into a hot shower, then dry and oil generously.
    North"wet"
     
  15. Steve Smith

    Steve Smith Moderator Emeritus

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    Really? And you can't calculate your come-ups?
     
  16. infantryman21

    infantryman21 Member

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    YES

    YES A MARKSMAN'S AND I HAVE CALCULATED IT BEFORE I ASKED BUT SENSE I HAVE NOT BEEN TO SNIPER SCHOOL YET IM ON MY OWN FOR LEARNING ABOUT THE M-14. AND IF THE ARMY TOOK TIME TO ACTUALLY PROPERLY TRAIN PEOPLE ON HOW TO USE DIFFERENT WEAPONS INSTEAD OF SAYING HERE THIS IS YOUR NEW WEAPON FIGURE IT OUT.
     
  17. Dave P

    Dave P Member

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    Sight height = 1.09"
    M80 Vel = 2750fps
    M80 BC = 0.39
    M80 bullet weight = 147grs

    ... For a 300yd zero, that would be .25" low at 10m. The bullet will cross above the line of sight at around 20yds.

    zzzzzzzzzzzzzzzzzzzzzzzzzzzzz

    Ty, using your numbers, our calculators still don't agree - who is right? Mine says the bullet will cross (as the bullet is heading up above the line of sight) at 12 yrds., and at 30 yrds, it is 1.6" above LOS. It peaks at about 178 yards, when it is 7.8" above LOS.

    I can't understand your sentence above. Pls double check, just for shucks and grins.

    Dave
     
  18. ScottsGT

    ScottsGT Member

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    Could this possably be because the M-14 was in storage for so long that know one knows how to train anyone to use it? This takes us back to another good reason to support the CMP. They just have to focus on selling/training to a younger generation. Not us old farts wanting to collect Garands. :D
     
  19. Turk

    Turk Member

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    Are you telling me your squad leader, Platoon Sarg. or Platoon Leader have no idea on how to use the 14? or that they are not willing to get this information and or training. If that's the case we'd better pack up and come home. What unit are you in?

    Turk


    Remember to pray for our troops.
     
  20. Hobie

    Hobie Member

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    I'm afraid this smells to high heaven. The language and equipment description is questionable. Odds are that the infantry units get to zero their M16s on a 25 meter range. If there is room for a 10M range there's room for 25M as the safety fan will be enforced. I know of absolutely NO 10M ranges on US posts with resident infantry units as all have 25M zero ranges. Even many/most/all pistol ranges go to 50M.
     
  21. Turk

    Turk Member

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    Hobie,

    Your post: I'm afraid this smells to high heaven.


    You think :)

    Turk

    Remember to pray for our troops.
     
  22. wgungho

    wgungho Member

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    I'm an old ex-marine, and I originally qualified with an M-14 at Paris Island. To battle sight the rifle, we fired on a 300" range, which gave us our 300 yard "battle sights". Bullet rise at 300" in the trajectory equated with bullet drop at 300 yards. Even with the rifle battle sighted, you need to adjust the sights to be perfect. Ballistic cards will put you close at longer ranges.
    I carried a 14 for a year and a half in Southeast Asia, and it never let me down-even once!
    If you think about the time line since the 16 became the issue rifle, there'd be darn few folks who ever handled the 14 still in active service. The folks who use them over at SOCOM probably don't train boots. They would have to be in their mid or late fifties.
    As desiginated marksman, I'd suggest a basic 4x scope to go with the 14. If you and rifle are in decent shape, you can hit the black at 600 yards all day long. Have someone at home send you some match ammo. Federal 168 grain would be nice.
     
  23. riverdog

    riverdog Member

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    Here's a Ballistic Calculator that you can try. It's in yards but it should get you in the ballpark. Using 2700 FPS at the muzzle and 1.5" sight height since you're using a scope, I got a 10 yard POI 0.6" below POA. To get that I used a 150 gr .308 bullet at 2700 FPS with a BC of .338.

    Good luck. Will the bullet have even stabilized at 10 yards? I'd be testing that zero in the field first opportunity.
     
  24. Red Tornado

    Red Tornado Member

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    I'm with Turk and Hobie on this one. It's a fun exercise, I guess, but what?!?

    Turk asked,
    No disrespect meant, but also, what army? I hope we're not sending designated marksmen in with no idea of where they're shooting.:eek: If we are, maybe we should just pack up.
    RT
     
  25. Bwana John

    Bwana John Member

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    10 meters, hmmm... :scrutiny:

    I would suggest fixing bayonets! :neener:
     
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