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Anybody here try Precision One ammo?

Discussion in 'The 10 Ring' started by Hawkeye shooter, May 26, 2012.

  1. I was messing around on gunbroker today looking at 10mm ammo and saw some from a place called Prcision One Ammo. They make new and reloaded ammo. Their website doesn't state the velocities on their 180grn ammo. Wonder if this stuff is any good???
     
  2. OK I got an e-mail back from these guys. They say their 180grn has a velocity of 1125-1150. Not as hot as Underwood.
     


  3. thesilverbullet

    thesilverbullet

    223
    18
    Dec 28, 2011
    DeepSouth
    ran a box of 500 "new" 230g fmj standard loads rounds through my 36 without any issues. they had good kick for standard load.

    nices guys located in charleston, sc and they come out to the local guns shows.

    however i noticed that google has flaged their website with possible malware... not sure what that's about...
     
    Last edited: Aug 23, 2012
  4. thesilverbullet

    thesilverbullet

    223
    18
    Dec 28, 2011
    DeepSouth
    looks like they took care of the malware deal - they are running go daddy sercuity...

    back to the ammo - they will do custom loads as hot as u like with different powder mixes...

    their target loads are a little hotter than wally worlds brands....
     
  5. drsjr1969

    drsjr1969 "10mm ammo" FB

    72
    1
    Mar 3, 2011
    Hawkeye - saw your post so I thought I'd help you out on ammo choices for the 10mm.

    I'm the guy on youtube and facebook that has chronographed 75 different rounds all from the same glock 20.

    spreadsheet on google check out the links.
     
  6. That energy list is awesome... Frightening to see the variations in loads...

    underwood is light years ahead of everybody else...

    Double tap should be absolutely embarrassed and ashamed.. Just shameful
     
  7. awdxtc

    awdxtc

    473
    40
    Jul 8, 2011
    PA
    Why does the list show the underwood 155gn tmj at over 800lbs of energy?
     
  8. Taterhead

    Taterhead Counting Beans

    3,603
    112
    Dec 13, 2008
    Boise, Idaho
    Energy is a calculated value derived from the measured velocity and bullet weight.

    The calculation for engergy is:

    velocity (FPS) squared times the bullet weight (grains). Divide that value by a constant that is roughly 450,400.

    Data from drsjr1969 input into the equation gives:

    (1551*1551*155)/450400 => 828 lb/ft.

    Lots o' energy in that load!

    As a side note, the highest energy I have personally chronographed through my G20 is 889 lb/ft with a handloaded Nosler 135 gr JHP. That was a scorcher!
     
  9. awdxtc

    awdxtc

    473
    40
    Jul 8, 2011
    PA
    well according to underwoords sight the 155gn tmj is listed at 1500fps and 775 lbs of energy. Your math is incorrect.

    [FONT=Arial, Helvetica][FONT=Arial, Helvetica][SIZE=-1]Energy = .5 * weight * velocity^2 / 7000 / 32.175[/SIZE][/FONT][/FONT]
     
    Last edited: Oct 3, 2012
  10. Taterhead

    Taterhead Counting Beans

    3,603
    112
    Dec 13, 2008
    Boise, Idaho
    My math is correct. So is yours. You are using the mfg box flap velocity. drsjr1969 is using his chronographed number.

    Try plugging the measured velocity of 1551 fps rather than the box flap velocity of 1500.
     
  11. drsjr1969

    drsjr1969 "10mm ammo" FB

    72
    1
    Mar 3, 2011
    Hey guys, There is a video to go with every chronograph result I have and those 155 gr were sent to me for personal testing by Kevin Underwood to help test out a new load he was working on.

    Awesome isn't it getting over 800 ft lbs from a completely stock G20.
     
  12. nickE10mm

    nickE10mm F.S.F.O.S.

    4,144
    76
    Apr 13, 2004
    Wichita, KS
  13. awdxtc

    awdxtc

    473
    40
    Jul 8, 2011
    PA
    You are correct, my apologies.