Reply To: Strange developments in RAW after takeover by Airforce

Forums PCP Airguns Strange developments in RAW after takeover by Airforce Reply To: Strange developments in RAW after takeover by Airforce

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addertooth
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To go back to the original poster's question.  Drill a round hole to the width of the oval slot.  You can then carefully, and slowly use abrasives and files to work the round hole to the ideal (oval/slotted) shape.  Don't forget to put a radius (as versus a square edge) on the inside the bore edge of the oval hole when you are done.  Airflow hates a sudden square edge when it is emerging from pressure, and causes disruptive turbulent flow.  It also dislikes a sudden change in impedance as well, and can create a reflected signal which works against flow momentarily.