Hi Urban Winter
Well done for getting a long arm. The targets are as follows
PL7 @ 50m
PL12 @ 25m (I think although I do not shoot on them)
PL14 @ 20yds
I shoot on PL7 & PL14's. The PL14 on the face of the card cliams to be a scaled down equivalent of a 50m target. PL15 is a larger target and so probably not a true scaling down of the PL7.
Hope that helps
South