Thanks for your help lads

I found this trolling for info on hydrostatic projectiles on Google - (too wet to go out in the paddocks today!)

Paste this into your browsers - this chap seems a bit intense however the info seems to explain the effect of these projectiles better than I have seen on the woodleigh site. Important bit is in the parragraph under the phot of the driving band bullet, anyway look for yourselves.

http://www.barking-moonbat.com/index.php/weblog/comments-editor/14599

Cheers

McLeish