[quaid]

Hi Quick,
Have a look on this site.......www.qldrifle.com. SOMEwhere on there is a section devoted to the long range club which shoots once a month on the Cannon Hill range. They will know all about it.

 

[quaid]

Quick,
here's another site.....www.matchrifle.org
Got it from Australian Target Rifle #84 p23.
Good luck