CFJunkie,
thanks for the valuable info, i am waiting for some factory ammo to be deliverd to try,
.223 Rem. Premium Gold Medal Berger BT Target 4,7g/73grs.

i will. try those and either rebuild them or try SMK 69 grs SMK 77 ,bergers 73 grs. Vitavuhori powder of all sorts are easy get here. Sofar all factory loads tested are not better than 1MOA on 100 mtr.
Have unscrewed and retorqued barrel to chassis screws today with 60 inch lbs . But can only try further factory ammo or handloads in a fortnight.