I guess because it has been done this way for about 100yrs.
Not defending this, just an observation.
I doubt much of the world's aristocracy took the time to run 200 rounds through their rifle prior to going out after tiger, lion, buffalo or elephant.
Of course they had the luxury of buying the best, which the CZ is obviously not. Not a dig at CZ, they are building to a price and handwork costs $$$. Probably not many out there willing to part with $10K for a CZ IMO when you can pick up a Mag Mauser for that.
Speaking of the newer Mausers, anybody here have one in 500Jeff. or 404? Any issues?

Respectfully. I think we should get away from the ides that all of these rifles that we treasure now were owned at some time by the aristocracy or the landed gentry.

Many, if not most of them, were owned by army officers, civil servants, farmers, Ph's ect.
Their salaries were comensurate with people of similar status now. Most were just working grade guns. They were relativly expensive, but people generaly owned only one or two guns. The tales of PH's of the time owning cabinets full are I believe eronious. If you read Taylor sometime , add up the value of the guns he "owned" it comes in modern money to millions of pounds worth.

If you bought a gun from a decent maker you should be able to take it out of the case and just go hunt, personally I believe that it should still be like that. It should have been sighted in by the maker prior to giving it to you. The reason was fairly simple, people then in the majority knew damm all about guns, same as now realy, except they saw no shame in letting their gunmaker do the technical part for them. There was no handloading and they let the maker choose the cartridges for them based on where in the world they were going to use the product. For all that they killed a hell of a lot of game. They treated these guns as the tools that they are.
Now it is different, they are objects of desire and recreational items in the majority. People want to tinker with them, make them shoot bullets and loads that they were never designed for etc.etc.

It is now a sin for a gunmaker to actually shoot the product prior to dispach. I had a new Marlin traded to me. BNIB, I ran a mag full through it for function. When I went to trade it out I could only sell it as used. I have been told that if you turn the cylinder on a colectable SAA you can half its value

So the question is really, do people want a "New" gun or one that works. A novelty item, or a tool all be it a beautiful one, they cant realy have it both ways. No maker can supply a bolt never turned BNIB gun and guarentee that it will work.

Regards