Hello from Tenerife, Spain.
Yes, F-CLASS RIMFIRE was created, in Spain, since 2011 as F-CLASS CENTER FIRE option for training. Today is one of the most important discipline on rimfire in Spain, same than de BR... We shoot at 3 different offical distances: 50m - 100m - 200m, with an individual target for each distance.
If you are interesting, I could send you the official f-class rimfire rule book and targets.. Also I was created the F-CLASS AIR too, to use our PCP rifles at 25m - 50m - 100m.
Please visit our site:
www.clubbrcanarias.com/F-CLASS/
Also, This is a comparative chart between BR vs F-CLASS, rifmire & air rifle.
cheers...
Digi2496