Francouzské strojení
French tuning is a close-range fine-tuning method where the archer shoots groups at a near distance — roughly 3 yards — and a far distance — typically 15–20 yards or more — and adjusts the rest until both groups land on the same vertical line. It refines center-shot after gross alignment is established.Detaily
The principle is similar to walk-back tuning but uses only two reference distances and relies on the archer intentionally aiming at the same point. At 3 yards the arrow has barely had time to leave the bow's influence, so the near group reflects launch angle almost directly. At 15–20 yards the arrow has traveled far enough for small horizontal errors to compound. If the far group sits to the right of the near group (for a right-hand shooter), the rest needs to move left; if the far group sits left, the rest moves right.
French tuning is regarded as a finishing step rather than a starting point. It presupposes that the bow has already been roughly paper-tuned or walk-back tuned and that the archer's form is repeatable. Because the near distance is so short — 3 yards — any form inconsistency, such as grip torque or an inconsistent draw, produces scatter that obscures the rest-position signal. Archers who try to French-tune with poor groups typically end up chasing noise rather than signal.
The method is particularly popular in field archery and recurve communities because it is fast and requires minimal range space — 20 yards is enough. Compound archers use it as a final confirmation after coarser center-shot adjustment methods. One variation extends the far distance to 30 yards or beyond, which amplifies horizontal offset and makes small errors easier to see, at the cost of requiring tighter form to keep groups useful.
Adjustments should be small and methodical. Moving the rest a fraction of a millimeter at a time and re-shooting both distances after each change is standard practice. Because the near and far groups interact — moving the rest changes both — it is important to re-shoot the near group after every adjustment rather than assuming it held. Keep notes on which direction you moved the rest and by how much, so you can reverse cleanly if you overshoot.
související v BowSmith
Časté otázky
- What is the difference between French tuning and walk-back tuning?
- Walk-back tuning uses three or more distances and evaluates drift across all of them, making it good for detecting and diagnosing center-shot problems. French tuning uses two distances — one very close, one moderate — and is best suited as a final fine-tuning step once the gross alignment is already close.
- Why 3 yards for the near distance? Can I use 5 or 6?
- 3 yards puts the arrow almost in the bow's immediate influence zone, which isolates launch angle. 5–6 yards still works and is more forgiving for archers who are uncomfortable shooting at such close range. Just keep the near distance consistent between sessions.
- My two groups stack vertically but both are left of my aim point. Do I need to move the rest?
- Not necessarily for French tuning purposes — the method only checks that the two groups align with each other vertically. A shared lateral offset from your aim point is a sight windage issue, not a rest-position issue. Adjust your sight to bring both groups to center after French tuning is complete.