Quote Originally Posted by SpikeG View Post
Looking at the chrony from the front, on the left hand side of the display unit (actually on the side of the chrony if you like) you should see a hole. If your chrony is pre 2001 (iirc) then it won't be fitted.

You can see the hole in this pic (just)

http://www.airgunbuyer.com/ecommerce.../chrony-f1.jpg
Errrrr,,,,Spike

Guess what I just found

What a dick

I saw the test rig piccy....I'll fetch my coat