This is just a thought and to see interested, please indicate what is your view.
Attached the USA rules example/guideline.
Pistol Field Target Rules
1. Air pistols only. The maximum caliber is 0.177.
2. Muzzle energy limited to 12 foot-pounds.
3. Barrel length is limited to 15 inches including any attachments to the muzzle (e.g. moderator, or flip compensator). A wooden or other barrel-friendly dowel will be used to determine the length of the barrel, as measured from the tip of the barrel or muzzle attachment to the breech-face.
4. Forend depth is limited to a maximum of 3 inches, measured from the center of the barrel to the lowest part of the gun forward of the trigger guard.
5. Attached cylinders at the rear of the Pistol are not allowed.
6. Overall length including any attachments must not exceed 25 inches.
7. No shooting jackets, slings, harnesses, or other bodily supports. Clothing or shooting gloves worn by the shooter must not restrict hand or body movement.
8. No shooting sticks or mono/bi/tri-pods.
9. Knee-pads may not exceed 1 inch in thickness. The intent is to allow comfort, and not an extra form of support.
10. Sand bags, knee risers or buttstocks are not allowed.
11. Scopes maximum magnification of 12x. Variable scopes capable of greater than 12x are not allowed. Clicking is allowed.
12. Seats up to 6 inches high allowed.
13. Time limits may be enforced.
14. Any shooting position is allowed so long as the pistol is fully supported by the competitor. Hangy-tanks are allowed, but cannot contact the ground or shooter’s anatomy while shooting.
15. Distance 10-35 yards
16. Kill zones sizes shall be 0.5” to 2” in diameter.
17. Forced Offhand (Standing) Shots: Pistol is held solely by the hands, and may not contact the arms, body, or any other kind of support.
18. Eye-cup contact with the face is permitted.
19. Classes: AAFTA requires at least one sanctioned class for a legal match.
Other classes may added if desired. Sanctioned classes are:
A. Limited Class: Rules as defined above.
B. Hunter Class: Rules as defined above, but no turret adjustment allowed during the match (no clicking.).
Any form of seat without back or arms support may be used. Monopods, shooting sticks, or bipods may be used, with the same restrictions as described in the