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  1. 11-04-2012, 06:25 PM #1
    RDub
    RDub is offline Junior Member
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    10mm Remington UMC 180gr FMJ report

    10mm Remington UMC 180gr FMJ



    I Just got two boxes of this ammo in the mail yesterday. No one in this area carries it for some reason or another..

    Remington seats the 180gr FMJ bullet to a length of 1.248-49”.
    Taking a look inside, we find the case loaded with 7.0grs of propellant.



    The propellant looks like a large grained flattened ball powder.



    Here is another look;



    The bullet weighed out at exactly 180grs..



    Took some of this ammo to the range today.
    Temps were in the high 50’s. Clear sky, and RH at 60%.



    I shot two groups;
    Shot one with the ISMI 22# spring and the other with the factory spring, just to see what difference it made. The factory spring shoots this much better.
    The velocity was a little disappointing.. I was expecting at least something in the low 1100’s..
    In the picture the average velocity is underlined, followed by the extreme spread, Standard Deviation, and temperature.
    Circles are 5½".

    Oh well, there ya have it..
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  3. 11-05-2012, 12:48 PM #2
    papahawk's Avatar
    papahawk
    papahawk is offline Junior Member
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    Both are good groups (even with the oops). If you are looking for full power 10mm loads, there is only a couple manufactures that load them, Buffulo Bore and Cor-Bon. If you reload, 800X or blue dot will give you the velocities of the origanal 10mm.
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  4. 11-05-2012, 06:56 PM #3
    RDub
    RDub is offline Junior Member
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    Quote Originally Posted by papahawk View Post
    Both are good groups (even with the oops). If you are looking for full power 10mm loads, there is only a couple manufactures that load them, Buffulo Bore and Cor-Bon. If you reload, 800X or blue dot will give you the velocities of the origanal 10mm.
    Roger that papahawk..
    Yep, I've been giving this G20SF a workout finding out what shoots well.. If you want to check it out;

    Glock 20 10mm - Handgun cartridge reloading - Metallic cartridge reloading - The Handloaders Bench

    I have a magazine full of BuffBore 180JHC for a rainy day.. They do 1255 fps out of my stock barrel.

    Favorite handload is 10.2grs 800-X, starline case, Rem2½ and a Hornady 180gr XTP at 1260fps.

    The Underwood ammo I tried created a lot of smileys in the stock barrel..

    It's amazing how much most 10mm ammo is underpowered.. not just a little.. a lot!
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