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Thread: Inconsistent Velocity Issue

  1. #1

    Inconsistent Velocity Issue

    Hello everyone. Last weekend i tried to chrono my automag rt. I was shooting really high and then tuned it down to around 250. within a few shots i range from 190 to about 260 with out adjusting the marker. Mostly it shot +/- 25 fps. I tried using the gold spring instead of the red one, i had the same issue. I tried using a standard tank instead of a 950 psi tank with the same result. I made sure that the marker had oil in it. I am not sure what else to test. I am using a level 10

    Thanks

  2. #2
    Join Date
    Oct 2009
    Location
    McHenry, IL
    Posts
    485
    My guess would be inconsistent paint size. Were you using crappy paint?

  3. #3
    it was good paint. new from the shop, graffiti

  4. #4
    Join Date
    Nov 2012
    Location
    Finland
    Posts
    365
    My guess would be dirt and/or bad o-rings in the regulator part of the valve.

  5. #5
    Join Date
    Jan 2002
    Location
    Halifax, N.S., Canada
    Posts
    7,235
    Dirt is the biggest cause of problems in a mag or any regulator. A piece of dirt on the regulator piston assembly can cause wild velocity swings. Clean the valve assembly and all orings.
    Except for the Automag in front, its usually the man behind the equipment that counts.

  6. #6
    What is the lube that i need to use in the reg? I took it apart and it has grease in it.

  7. #7
    Join Date
    Jan 2002
    Location
    Halifax, N.S., Canada
    Posts
    7,235
    Quote Originally Posted by billski View Post
    What is the lube that i need to use in the reg? I took it apart and it has grease in it.
    The regulator needs oil that is a light synthetic lubricant.

    The grease on the spring pack at the back of the regulator piston assembly is only to keep the springs from rusting. Grease stays on the metal better than oil that gets blown off or dries up.

  8. #8
    the part with the spring isnt what i should be cleaning? or the part that it screws into?

  9. #9
    Join Date
    Jan 2002
    Location
    Halifax, N.S., Canada
    Posts
    7,235
    The part that needs cleaning is the inside of the regulator back and the outside of the piston assembly.

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