I know you can get about 2600fps out of a 143grain in a 16" 6.5 Creedmoor which is what I'm aiming for.
That should be good till at least 500m with the scope I've got for it though to be honest 350 - 400m would be the absolute max for me for the type of hunting I plan to do with it.
Horses for courses I've still got a 24" Heavy Barrel R700 6.5 Ceeedmoor in the safe if I want to get more range...but I'm not carrying that around the bush.
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