Yeah I just read the rules and it definitely says no 22 Rimfire!!!!

I think Marrakai's reasoning is correct, however I believe the club running the event has the ability to not include the score of a shooter using a rifle that is "Not in the spirit of the event". I will check to see if this correct.

In which case the rules may need looking at as there are plenty of 22 Rimfire rook rifles made at the turn of the century or slightly before. We allow them at our monthly shoots.

Matt.