Certainly the sort of hunting, the number of shots and the proliferation of game without bag limits here in Oz makes a big difference to the approach when hand loading.
There is only one species of deer in Oz that requires tags and has bag limits.
Most feral species, deer and buffalo usually being the exception, are shot in as high a number a possible.
We hunt hogs and goats like you hunt varmints because they are pests.
And when you cull hunt buffalo, a practise that is done on particular properties because of the damage they do to fences and the feed they take away from beef cattle, you have to be able to shoot all day.
Much of our shooting is across open country at decent ranges but we have to take a lot of shots too.
So 223 and 243 are probably the most popular cals as they recoil less, are flat shooters, are very accurate and are flexible for small and medium game.
Plus they're cheap to load or to get factory ammo.
But using either the 240gr 30 cal in an '06 or the 250gr 8mm in my 8x57 I'd take on a buff.
That's what Woodleigh designed these pills for.
What they lack in calibre they make up for in penetration.
That said, neither 30 cal or 8mm are ideal cals for buffalo.
If you had a teenager or woman not up to a 338, 9.3 or 375 that was nonetheless a good shot with the 30 cal it would be a good alternative.
Or if you were touring Oz and could only take 1 rifle then an '06 and a Lee Loader with a range of projectiles it would be a good compromise.
And more importantly, if you were part of an experience d professional hunting team contracted to cull buffalo on a regular basis the 240gr RNSN would be a superb choice.
But aside of that give me my 9.3x62 or better still, my Ruger No1H in 450/400 NE 3"!