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  1. #1
    Junior Member
    Join Date
    Mar 2011

    10mm HSM 200gr FMJ

    Finally got around to shooting some of this HSM ammo today. Weather here in southern Oregon was perfect.
    Rounds were shot out of a stock Glock 20-SF at 25 yards.

    I found a box sitting with some other HSM ammo all by itself at the local Sportsman’s.
    Packaging is basic, they just grabbed 50 rounds, put them in a box and called it good.

    I wasn’t going to put this online, as it seemed pointless. It is highly unlikely anyone will see any ammo on shelves for a very long time, if ever… Now that we have this ‘black cloud’ hanging over us..

    Well what the heck.. I took all the pictures..

    Examining the rounds I found a COL of 1.243-1.246” and Starline brass.

    Taking a look inside I found a powder charge of 7.8grs.

    Here’s a closer look;

    Here is a shot of the primer;

    The sample bullet weighed 200.2grs.

    At the range I shot seven rounds. I still have this ‘first shot is a flyer thing goin on..’
    Aside from the flyer, I got a pretty good group from this ammo.
    The target circles are 5".

    Case head measurements; .4340” .4340” .4340” .4342” .4332” .4339” .4338”

    This is not wimpy ammo.. Velocity averaged 1086 fps and a spread of 26 fps.

    Well, that’s about it.. Be safe.

  2. #2
    Junior Member
    Join Date
    Nov 2008
    Thanks for the review. I got 4 boxes from there last summer and haven't tried them yet.

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