Working around gaps in the monsoon, I managed to properly headspace and fire-form a batch of brand-new Norma cases: worked perfectly!

This morning's load sequence with AR2209 (H4350) under the 160gr Woodleigh produced the following consistent results:

52 gr = 2633 fps
53 gr = 2687 fps
53.5 gr = 2705 fps
54 gr = 2724 fps

I'll be happy with the 2700fps load that matches the 1939 published ballistics above, so 53.5 grains is the load!

Seriously considering giving the Ross a run in the Stalking Rifle event at our Big Game Rifle Club meet this weekend...

...weather permitting!