FGMM .308 168gr vs. M118 Match ammo!???

This is a discussion on FGMM .308 168gr vs. M118 Match ammo!??? within the Rifles forums, part of the Sniping Related category; I found a web-site that sells the Lake City M-118 ammo that is 173gr. and wanted to know what you guy's think is better the ...

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  1. #1
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    FGMM .308 168gr vs. M118 Match ammo!???

    I found a web-site that sells the Lake City M-118 ammo that is 173gr. and wanted to know what you guy's think is better the M-118 or the FGMM 168gr???
    "And the with the #2 pick in the 2006 NFL draft, the New Orleans Saints select Reggie Bush, RB USC" - Paul Tagliabu

  2. #2
    Senior Member hypno's Avatar
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    The fed GMM is better. M118LR could possibly be a different story though.


    dom
    "A rifle is like a human. The stock is the skeleton, the scope is the eyes, the action is the brain, and the barrel is the heart.
    But you, the man behind the rifle, you are the soul."

    -"Practice is a worn out snap-cap." -Yours truly

  3. #3
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    Quote Originally Posted by hypno02
    The fed GMM is better. M118LR could possibly be a different story though.


    dom
    Thats what it is!! It is the Lake City M118LRM 173gr. in .308!!

    $39.99 a box though!???

    Heres the site!! http://www.impactguns.com/store/308ammunition.html
    "And the with the #2 pick in the 2006 NFL draft, the New Orleans Saints select Reggie Bush, RB USC" - Paul Tagliabu

  4. #4
    Senior Member hypno's Avatar
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    Can't tell ya much now. The marines and army use the m118lr for their snipers.......so it must be pretty darned good! Fed GMM is also great ammo. Ask anyone w\ a tac ops rifle!


    dom
    "A rifle is like a human. The stock is the skeleton, the scope is the eyes, the action is the brain, and the barrel is the heart.
    But you, the man behind the rifle, you are the soul."

    -"Practice is a worn out snap-cap." -Yours truly

  5. #5
    Sponsors mele's Avatar
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    The 118LR is good ammo, but it is 175gr and not 173. It is NOT worth $40 a box. Buy Federal GMM 175gr, its nearly identical and can be found for about half that price and gives up NOTHING to 118LR. I've heard that 118LR is coming back to keislers which should have it for much cheaper

    MEL

  6. #6
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    M118 Special ball: worst of the 4, its not bad ammo but its not match grade by civilian standards
    M118LR: about as good as FGMM 175 gr...
    FGMM 168 gr BTHP: good quality, lighter round though, probalby not as good for long range shooting because of this
    FGMM 175 gr BTHP: probably the best out of the selected round for long distance, only better in my opinion because of bullet weight

  7. #7
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    Quote Originally Posted by Jeff_850
    M118 Special ball: worst of the 4, its not bad ammo but its not match grade by civilian standards
    M118LR: about as good as FGMM 175 gr...
    FGMM 168 gr BTHP: good quality, lighter round though, probalby not as good for long range shooting because of this
    FGMM 175 gr BTHP: probably the best out of the selected round for long distance, only better in my opinion because of bullet weight
    OK so go with the FGMM in 175gr. Does the heavier bullet help it go further with less resistance cause of the weight??? And how do I figure out the Ballistic Coe??? is it the same for all the rounds from FGMM 175gr??? and Lastly I notice alot of people rapping their rifles with tape or strips of burlap etc.., but I though that fools with the Harmonics??? Does that take away some accuracy???

    Thanks for the replies!!!
    "And the with the #2 pick in the 2006 NFL draft, the New Orleans Saints select Reggie Bush, RB USC" - Paul Tagliabu

  8. #8
    Sponsors mele's Avatar
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    The M118LR and the FGMM 175gr use the same 175 Sierra Match King bullet, as does blackhills 175gr match, HSM 175gr Match and some others. (ABT does not use the Sierra Bullet). So, for all the ammo that uses the sierra match king 175gr, they have the same BC.

    Sierra Bullets
    175gr BC: .496 (between 1800 & 2800 fps)
    168gr BC: .447 (between 2100 & 2600 fps)

    The other MORE important thing about the 175gr vs the 168gr is that the 175 has a 9 degree boattail vs the 11 degree boattail of the 168. The steep boattail of the 168 actually can cause airstream seperation as it desends through the transonic layer (usually about 600-700 yards) which can hurt accuracy at longer ranges. Some people never see it in their rifles, others do.

    In my experience the 168 seems to be a bit more accurate at 100-300 yards and the 175 more accurate beyond. No hard emperical data to back that up, just the way it "feels".

    MEL

  9. #9
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    Quote Originally Posted by mele
    The M118LR and the FGMM 175gr use the same 175 Sierra Match Kind bullet, as does blackhills 175gr match, HSM 175gr Match and some others. (ABT does not use the Sierra Bullet). So, for all the ammo that uses the sierra match king 175gr, they have the same BC.

    Sierra Bullets
    175gr BC: .496 (between 1800 & 2800 fps)
    168gr BC: .447 (between 2100 & 2600 fps)

    The other MORE important thing about the 175gr vs the 168gr is that the 175 has a 9 degree boattail vs the 11 degree boattail of the 168. The steep boattail of the 168 actually can cause airstream seperation as it desends through the transonic layer (usually about 600-700 yards) which can hurt accuracy at longer ranges. Some people never see it in their rifles, others do.

    In my experience the 168 seems to be a bit more accurate at 100-300 yards and the 175 more accurate beyond. No hard emperical data to back that up, just the way it "feels".

    MEL
    OK thanks for the info!!! What about the rapping of the rifles?? Does that mess with the Harmonics of the barrell???
    "And the with the #2 pick in the 2006 NFL draft, the New Orleans Saints select Reggie Bush, RB USC" - Paul Tagliabu

  10. #10
    Sponsors mele's Avatar
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    It may, and it may not. If you wrap it loosely with not a ton of burlap, it will not affect it much. If you wrap it tight, especially barrel to stock, it can affect it more. Best thing to do is test fire.

    MEL

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