Having read the thread from the beginning I feel that it would be worth referring to NSRA Rules Appendix A, section dealing with the use of the
4. 5 mm OVERSIZE GAUGE FOR 10 m AIR RIFLE AND RUNNING TARGET AND FOR 6 yard AIR RIFLE. In particular it should be noted that the gauge size used for scoring on the next outer ring is 5.5mm. If you are using a 4.5mm gauge then you should score inward. As Romah observes, that is the way the targets are designed, the oversize gauge is only used to improve scoring accuracy because of the small highly curved rings.

A "10" using outward scoring with a 4.5mm gauge on the 6yd Air 7 Target would give a value of the approximately 10.6 were decimal scoring used vs. inward scoring. I doubt that it was intended to be so difficult.

Rutty

The NSRA Rules may be downloaded from the Reference Section of the NSRA website