That 300 metres target is awesome. I have never personally witnessed anyone produce a 10 shot 300m target that looked as good as that. I am not saying it can't be done with the right rifle, in the right hands and in the right conditions.
I have a Shillened stevens 200, I invested a total of $1200 before tax and before $500 glass.
At 300 yards I have shot a few
4 shot groups in the .4"s, ,5"s and .6"s.
I even have a couple of pictures.

But we all know 4 is not a group.
When I shoot 10 shots, the groups can range from as good as 1.5", 2.0" and upto 2.5".

I was aiming for a 2" gun at 300 yards when I stuck the thing together. So for the $$$s I am very hapy with sub MOA at 300.
It stands to reason that rifles with a price tag close to $7000 would have to at least have the ability to shoot around an 1" at 300 metres. It would be crazy and dissapointing for all concerned if they did not.