Jag, it was I, and it was on 5 mag, not 6. I knew the aimpoints for 10x mag but as we were shooting to UKAHFT rules with no refocussing allowed I decided to shoot on a lower mag, and choosing 5 instead of 6 simplified the mental arithmetic.
And thanks for the result,
actually it was 76 ex 100 not 80 but it was all shot kneeling.
So all I have to do on Sunday is to beat 26 and I've improved my score.....