Little late here but after tinkering with a few factory rifles i decided to just build my own and have been doin alot better.

20" ARP 8 twist Barrel
Trying out different brass after sorting and prepping it.

100 yards
10rds new lapua brass
10rds once fired full length resized lapua brass
10rds once fired Neck sized lapua brass
73gr ELDM H4895 CCI BR4

Neck sized again and tested at 600 yards and goin to use that for my F-class load.

[Linked Image]