I worked for the PBD driving trucks in Adelaide and worked for Arthur, Hall and Actkins operating heavy plant doing the Eyre Highway at Nundroo back in the seventies, good shooting then.
My name is Gary, from sunny Hawkes Bay, I have a Tikka T3 Varmint in 204 and like most find it a challenge to get the best performance, I am shooting .3" to .4" groups at 100m, have not managed to reach that 4000fps mark yet. Picture will be posted soon