Range Report New M118LR loading from Federal

CoryT

CoryT

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    • Mar 5, 2004
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    Paulden, AZ
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    #1
    I've been priviledged to do a little testing of a new M118LR loading from Federal, formally announced at NDIA a week or so ago. It's loaded with an IMR type powder, reducing temperature related velocity shifts, making the load much more consistent across a wide swing of temperatures.

    The standard M118LR <span style="text-decoration: line-through">ball</span> [correction: current m118LR uses RE 15, thanks Two Shooes for the point out] powder loading shifts velocity almost 1 fps per degree F. My tests of the new loading show it shifts less than 20 fps average from 0F to 100F, plus the SD over a 40 round string was only 15fps.

    This load has been under 1 MOA in seven different test rifles out to 800 yards. My personal Krieger barreled Rem 700 put 5 shots into 3.78" at 800 this morning, vertical dispersion was only 2".

    My boxes are coded Mk 316 Mod 0, 1305-01-567-6944 AB39.

    I don't know where this is in the supply system yet, and I have no information to suggest it in any way replaces the existing M118LR.

    I will say I've shot rather a lot of the current standard load, and I have several thousand rounds on hand. It has always performed well and I've been quite happy with tit. This is a measurable improvement, and I would gladly trade all the 7.62 I have for it.
     
    #2
    Re: New M118LR loading from Federal

    Dave and the boys at Federal did a good job developing that round. Good powder too. I took part in the development and feel the Navy will be happy with the outcome. It's a great improvement over standard issue.
     
    #5
    Re: New M118LR loading from Federal

    I shot some standard M118 out of an LTR last week at 400 yards. It was quite mild in recoil versus 175 smks w/ 43 grs of H4895 and the POI was a good 1.5 minutes lower. That stuff was just loafing along.

    2735 fps seems like a pretty spiffy load.
     
    #9
    Re: New M118LR loading from Federal

    So I have to ask, how exactly did you gain access to this ammo? My picture hangs on the wall right outside the guy in charge of this projects office, and I have not even fired one single round of it.....

     
    #10
    Re: New M118LR loading from Federal

    I got 2580 from a 20" LTR. The DODIC does appear to be AB39 as opposed to AA11.

    As it happens, David came to the PR7 class and brought this to test during the class. There was a bit left over, which, rather than ship back, he left with me to test. Now it remains to to seen how I'll ever get any more of it, but I'd much rather see it getting to those who can truly put it to good use.
     
    #12
    Re: New M118LR loading from Federal

    I know what the powder is, but Im not sure I can say, dang NDA's and all that. But Its not exactly new, If you could find powder in stock you could order it from any of the usual suspects

    Since I moved back to Indiana I lost my "Corporate Sponsorship" when it came to Mk262 and M118LR, After the June Atterbury F Class match I will be shooting my own loads that will mimic Mk316

     
    #15
    Re: New M118LR loading from Federal

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MLC</div><div class="ubbcode-body">Is this a new IMR type powder? </div></div>
    New for this go around. Eugene Stoner recommended the IMR 4475 powder (Improved Military Rifle) when he first offered the AR-15 in the early 60's.
     
    #16
    Re: New M118LR loading from Federal

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Psywar1-0</div><div class="ubbcode-body">I know what the powder is, but Im not sure I can say, dang NDA's and all that. But Its not exactly new, If you could find powder in stock you could order it from any of the usual suspects

    </div></div>

    I do not know the contents of your NDA, but will it allow you to disassemble the product and just weigh the powder charge? With the powder charge I am sure a lot of folks will zoom right in what powder it is for the given advertised velocity.

     
    #18
    Re: New M118LR loading from Federal

    The load is approx. 40.2 grains of an IMR type powder, the kernel is about 1/3 longer than a kernel of Varget. It certainly shares the temperature insensetivity of the Hodgdon Extreme type powders, but that's all I know about it.
     
    #20
    Re: New M118LR loading from Federal

    I think H4895 is a bit longer kernal than Varget. 3031 would be temp sensitive.
    But the charge wt. seems light??? what is out there that would be faster than 4895 and be temp insensitive to have such a light charge wt.

    What a minute. being Mil Spec. it probably has a magnum primer for cold weather, LC Brass so the charge Wt is not light.

    My vote is H4895
     
    #27
    Re: New M118LR loading from Federal

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CoryT</div><div class="ubbcode-body">The brass is marked FC, the case holds 55.2 grains of water. </div></div>

    CoryT,

    Now, here is another question for you - Is the bullet crimped though the 175s do not have a cannelure? Or should the question be - Is the case crimped at the mouth? You know what I am asking about. If the cases were indeed crimped, is the crimping a contributing factor to the consistency round after round as demonstrated? 1/2 minute accuracy on target, 15 FPS ES, and tight water line, 2 inches, at long range.


    Cheers...
     
    #30
    Re: New M118LR loading from Federal

    Now you've let the cat out of the bag.

    powdercan.jpg
     
    #33
    Re: New M118LR loading from Federal

    Yall should shoot some of this at night to really get impressed

    Also I have the load data, if you have a soc.mil email addy I can give you info, otherwise, Sorry no can do.....

     
    #34
    Re: New M118LR loading from Federal

    OK I have a question. The M118 loaded with 4895 pushing the mil 173 bullet dosnt home have a muzzle flash at night out of a M21/14/MIA which was great in the M21s. How about R-15 pushing the 175 SMKs out of a M14/M1A. The no-flash would indicate to me a I'm geting a perfect powder burn.

    I've always loaded 4895 in my 308s, saving my R-15 for my AR Service Rifle.

    I'm wondering if I can go to one powder for both. I suppse I could try it my self but that would require pinning up my horses if I'm gonna shoot at night, plus Id have to hope I didnt end up poaching some deer.
     
    #35
    Re: New M118LR loading from Federal

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: kraigWY</div><div class="ubbcode-body">OK I have a question. The M118 loaded with 4895 pushing the mil 173 bullet dosnt home have a muzzle flash at night out of a M21/14/MIA which was great in the M21s. How about R-15 pushing the 175 SMKs out of a M14/M1A. The no-flash would indicate to me a I'm geting a perfect powder burn.

    I've always loaded 4895 in my 308s, saving my R-15 for my AR Service Rifle.

    I'm wondering if I can go to one powder for both. I suppse I could try it my self but that would require pinning up my horses if I'm gonna shoot at night, plus Id have to hope I didnt end up poaching some deer. </div></div>

    That's your flash suppressor doing its job more than powder burn characteristics. Betcha that same ammo out of the same length barrel with a bare muzzle will flash impressively enough.

    Muzzle flash includes elements of heat incandescence, plus powder byproduct gases igniting on contact with atmospheric O2. Consult QuickLoad for an estimate of how complete the powder burn is.
     
    #37
    Re: New M118LR loading from Federal

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MLC</div><div class="ubbcode-body">Now you've let the cat out of the bag.

    powdercan.jpg
    </div></div>


    That's just awesome. Wish I could photoshop stuff like that!
     
    #45
    Re: New M118LR loading from Federal

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CoryT</div><div class="ubbcode-body">The load is approx. 40.2 grains of an IMR type powder, the kernel is about 1/3 longer than a kernel of Varget. It certainly shares the temperature insensetivity of the Hodgdon Extreme type powders, but that's all I know about it. </div></div>

    Is it also green?


    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Psywar1-0</div><div class="ubbcode-body">http://www.dtic.mil/ndia/2009infantrysmallarms/tuesdaysessioniii8524.pdf

    The public release info on this ammo </div></div>

    From that presentation:

    <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Propellant

    • Over 20 different existing propellants and new propellant blends were evaluated
    • A modified extruded propellant was utilized</div></div>

    Wouldn't "modified" imply that its not available off-the-shelf?
     
    #46
    Re: New M118LR loading from Federal

    <span style="text-decoration: line-through">IMR 3031 is too slow to give 2735 fps with only 40.2 gr. (It would require around 43.1 grains)</span>

    <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">IMR 4198

    This fast burning rifle powder gives outstanding performance in cartridges like the 222 Remington, 221 Fireball, 45-70, and 450 Marlin. Varmint shooters with small-bore cartridges love it. Proven metering and <span style="font-weight: bold">necessary elements were added to make it extremely insensitive to hot/cold temperatures</span>. IMR4198 is outstanding in cartridges like the 222 Remington, 444 Marlin and 7.62 X 39.</div></div>

    <span style="text-decoration: line-through">IMR 4198 matches up better...</span>

    CoryT,

    What is the approximate COAL?

    <span style="font-style: italic"><span style="font-weight: bold">edit: ignore the crossed out stuff, its wrong!</span></span>
     
    #48
    Re: New M118LR loading from Federal

    That rules out any of the Extreme powders. If it's made by IMR, temperature stable and available on the shelves (normally), I see IMR 4198 as the only possibility. Don't know if the kernels are longer than Varget as I've never used that powder. QL says big over-pressure with 40.2 gr. of it, but its been known to be way off with some powders... H4895, for example.
     
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