The Mini and Axe have backcaps that control how far the poppit can open. It has the largest effect on velocity. Never adjust the velocity using the regulator, only use the backcap (unless you have a Boss bolt). Here is what I copied from the TM manual
Adjusting Velocity |
- At the back of the TM-7 main body is the Bolt Guide Cap. The holes in the bolt guide cap serve as your velocity adjuster.
- Confirm that the pressure on your TM-7 Bottom-line Regulator is at 200 PSI.
- You can access the velocity adjuster thru the bottom of the shell, just in front of the battery door.
- Then you can increase or decrease the velocity on your TM-7 by tightening or loosening the velocity adjustment screw, with a 7/64" inch Allen wrench.
- To Increase Velocity- Unscrew or loosen the velocity adjustment screw by turning it toward the left side of the marker (counter clockwise). Rotate the velocity adjustment screw counter-clockwise in small increments, stopping between slight turns to test velocity, until desired velocity is achieved.
- Do not back the adjuster out too far. Stop if you hear an air leak, and adjust back in a 1/4 turn. A paintball specific radar chronograph should be used to accurately measure your velocity.
- To Decrease Velocity- tighten or screw-in the velocity adjustment screw by turning it toward the right side of the body (clockwise).
- Rotate the velocity adjustment screw clockwise in small increments (1/4 turn or less), stopping between slight turns to test velocity, until desired velocity is achieved.
- A paintball specific radar chronograph should be used to accurately measure your velocity.