What rifles are capable of and what they need in the way of accuracy, are often 2 different things entirely. As you say, 1 to 2 moa is plenty - for most big game hunting by many of us.

I prefer, or rather demand my hunting rifles have the capability to shoot into 1 1/2" or less at 100 meters off the bags. Iron's or scoped, that accuracy standard stands. This is due to the odd chance, I might have to shoot at longer than normal range - so I want the accuracy - if that were to happen. It hasn't yet, but you never know. If they will shoot into 1/2" like my .375 and my .45 Sharps - hey - no complaints from me.

My 'rat' rifles for gophers MUST, however be capable of shooting into 3/8" @ 100 meters - they all do, even the .17 rimfires, which will shoot into 1" at 200yards.

That Manlicher in .358 would be a superb hunting rifle. A 250gr. at 2,200fps is an amazing killer of large NA game - all of it.