Bolt Cycle
Overview
The bolt cycle describes the full sequence of bolt movement during a shot, including forward travel, breech sealing, firing, and return.
Key Points
- Includes forward stroke, shot release, and rearward reset.
- Timing is shaped by dwell, operating pressure, and design.
- Critical for velocity consistency and paint handling.
- Spool and poppet platforms have distinct cycle profiles.
- Cycle efficiency affects rate of fire and shot smoothness.
Details
A marker’s bolt cycle is the complete mechanical process that occurs each time the trigger is pulled. During the cycle, the bolt moves forward to chamber the paintball and seal the breech. Once sealed, regulated air accelerates the ball through the barrel. The bolt then returns to its starting position via spring tension, pneumatic force, or electronic solenoid design depending on the marker architecture.
Cycle dynamics vary between spool-valve and poppet-valve systems. Spool valves rely on controlled air routing and dwell timing, producing low recoil and smooth operation. Poppet valves use a mechanical valve strike, resulting in a sharper but more air-efficient cycle. Bolt-cycle tuning via dwell, pressure, and debounce settings directly influences consistency, paint handling, and long-term reliability.
Video References
Related Topics
Linked From
- Anti-Chop System
- Blowback
- Breech Seal
- Dry Firing
- Dwell Time
- Grip Frame
- Marker Air Flow Path
- Mechanical Marker
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