This is 10 shots group taken yesterday with my FX Royale 400 .22 with BSA barrel. I was shooting from 925 fps to 931 fps using JSB 18 grain pellets. My Royale is regulated.
Distance was 50 meters. 9 shots make one hole and one shot is my fault.
( shots are a bit smaller than 1/2″.
Bench rest was not proper.
Wind was 23km. But as I was at proper range (semi outdoor- no roof), the effective wind speed would be around 12km to 16 km.
I understand that in indoor ideal conditions it is capable of 6mm size outer to outer group at same distance.
Just sharing my group.