I don't think it is necessarily a class issue. I think H&H saw a void in their lineup, especially in bolt action rifle chamberings and wanted to fill it for their customers. As soon as the cartridge design is accepted by the European testing standard organization (I don't remember the name or acronym) the specs will hit the street and reamers will be made, bought and sold for folks that want to chamber their rifles to something different. I don't think H&H has ever come out and said that the 400 is better than Remington's 416, just that THEY were offering something with the performance that some may be interested in. Of course, there's a price tag associated with all H&H products, so we argue the same class warfare on everything they produce if we are to argue that about the cartridge. Bolt guns, double rifles, etc...

I suppose if I wanted (or could afford) a new bolt action rifle from H&H and chambered for something similar to the 400 or 465, I can't see why they would not be a viable option. I don't think H&H did this to thumb their nose at anyone or to diminish the other commercial cartridges out there. No different than Remington bringing out a cartridge with their moniker on it.