I have a christensen Ridgeline in 280 ai that shoots the 168 ablr 1/2 moa consistently. I started with a powder that I knew would give me the speeds I want with a full but not compressed load density. H1000 fit so I worked up to pressure then played with seating depth a little and found my load.

I'm using formed rem brass, cci 250s, H1000, and the 168 ablr at 2900 fps from a 24" barrel.

Bb