Gehmann Non-magnified .22 Scoring Gauge All plugs meet ISSF rules regarding diameter Magnification assists the marker with easier judgement Outward scoring is available for air rifle and air pistol and the inner ten gauge for air pistol only Sprung handle avoid tearing shot holes Magnified: 132 for .177/4.5mm inward 133 for .22l.r./5.5mm inward 133P32 for .32 inward 133P38 for .38 inward 133P45for .45 inward 132NLG outward - for air rifle outword 132NLP outward - for air pistol outward Without magnifier: 135 for .177/4.5mm inward 136-22 for .22l.r./5.5mm inward 136-32 for .32 inward 136-38for .38 inward 136-45 for .45 inward 135NLG outward - for air rifle outward 134NLP outward - for air pistol outward 134LP-ITair pistol - inner 10 inward