I would have a hard time believing that 40% of SAKO's or Blaser's leaving the factory have problems or even "cheaper" guns. CNC has done miracles for quality.
Hmmm....
When I buy a firearm, to choose one, it takes me at least a year to analyze, compare, check, think about it, test the friends rifle if available with a friend, talk to guns shop owner, etc.... to get it as perfect as possible to my intended use or taste, which is equal important (taste).
After all this years, my conclusion is this:
If you want a "perfect" rifle, you must know exactly what you want, and for what purpose - and then make a custom rifle, order one, and pay for it. Then, only then, it will be perfect.
Simply put, my conclusion is factory made firearms are not personalized, thus minor imperfections could be.
Ok, since you mentioned Sako. I got one. I attached the picture, above, pls check position of rear sight near front end of scope.
I have (by dimensions) very ordinary average scope for it: Zeiss diavary 3-12x56.
The maker (Sako) for its own optiloc mount system says - for optics up to 56 mm, low mounts are possible to use. Indeed , the barrel will allow this, but not factory fitted rear sight. (!!!)
And I want the scope to be as low as possible.
So, optilock low mounts may be, but not for all 56 mm scopes. (not for diaary)
Front end of Diavary, on Sako optilock, gets on rear sight, cannot be adjusted rearwards, due to position of rings, and only solution is to put medium height rings, and to move the scope up! Scope can not be moved rearwards inside the rings, due to front cone.
So, if you are perfectionist, and want a rifle with as low mounts as possible, this will not be perfect option, may require gunsmith to assist to adjust for 56 mm.
I am not perfectionst, so I use the rifle as it is. i live with it as it is.
Rifle? It is accurate. Moa, or better. No any issues. Feeding, extraction, excellent. Set trigger, stock ergonomy, palm swell, forend tip, checkering, accuracy all perfect. No complaints, except for this medium height mounts.
Mount are also quick release. Attaching the scope, and detaching does not change point of impact. So, quality it is.
If the position of rear sight is different, low mounts could be used.
The flaw: Scope is not as low as I would prefer.
So, the choice is:
- to live with medium height mounts, with 56 mm scope. (my choice, my compromise)
- to use 50 mm scope, or less with low mounts (I use 56 mm for hunting in low light conditions)
- take it to gunsmith to do something with rear sight (I avoided this)
- or... to order a high end custom rifle to your specification, and pay for it. (not for me)
Is this a flaw, despite makers instructions on posibility for low mounts up to 56 mm? Or we will not call it a "flaw", but a "rifle specifications"?
Its up to an individual and how much perfectionist he is. But factory rifles are not "perfect". Even Sako, at least in my view.
For blaser I dont know, but modular rifle, gives quite a lot of other options, reducing the posibility of "flaws".
So coming back to subjetc of cz 550, various upgrades, possibly should not be considered as flaw, but more like personalization fo individual needs in safari DG hunting.