I went to the range this AM to do some load development for a new barrel. This is a Proof pre-fit carbon barrel on a BigHorn TL3 chambered for 6.5 Creedmoor.
These were rounds 12-13-14-15-16 through the barrel. The load is:
140 gr Berger Hybrid
Lapua SRP brass
H4350
The brass had the primer pockets uniformed and the necks turned to 0.014”.