I think one of the things that causes the most discussion, and differing opinions, is not being specific enough about what long range is and what the bullet is expected to do at a given range. I dare say that the vast majority of big game in the U.S. is killed at less than 200 yards. The bullet manufacturers make bullets to best fit the MAJORITY of shooters. Also, many shooters shoot magnum rifles whether they shoot more than 200 yards or not! Many of the HUNTING bullets are constructed with this in mind and they are built relatively tough because of this.
IMO, a good HUNTING bullet is one that performs the best for the purpose it is being used for. Having said that, several bullets that were designed for target use become better bullets for hunting at 1000 yards than the so called HUNTING bullets.
They not only have a thinner jacket for better expansion, but also higher a b.c. to keep the velocity at a level where they have enough energy left to expand.
It has only been VERY recently, with long range hunting becoming much more popular, that the manufacturers have started to realize this and the first actual HUNTING bullets developed for long range shooters have come on the scene. (Lets use 700+ yards as a baseline)(the op said 600-1000 meters) Examples of these bullets are the Nosler Long Range AB and the Hornady ELDX. Both of these bullets are better than so called target bullets close up and better than most of the old hunting bullets at distance. They have a high b.c. and expand better at lower velocities. (partially because of the tip which is another discussion topic)
Again, this is my opinion, but I think it is sound. At say 800 yards or more, I would rather have certain target bullets than ANY other bullets made. This does not include the SMK because the combination of a tangent ogive and small meplat does not allow them to open well at lower velocities.
Again, I think what must be kept in mind is; what is the definition of long range hunting? There are a lot of guys on this forum that consistently kill game from 700-1200, and sometimes farther. At these ranges, certain TARGET bullets become HUNTING bullets IMO.
The bullets that I make for my 30 are about as target as it gets. They have thin target jackets, large tips, and very high b.c. They also perform better on long range game than any that I can purchase. Close up, they are EXPLOSIVE and there are a lot of better bullets for that use........Rich