The problem with many who post is: They actually shot 1, 2 or possibly 3 groups that were sub-moa....then they declare immediately that they possess a sub-moa rifle.
IMHO, That is not what describes a sub-moa rifle. If they shot 25 consecutive groups that were under 1 moa, then I might be inclined to believe that they have a sub-moa rifle.
As far as factory hunting rifles go, such a rifle is actually rather rare!! If you have one, you should never sell it, because it may be a long time before you find one again.
I have a 338 Win Mag [a Ruger 77 Mk 2] that quite frequently delights me with a group under 1", but I cannot classify it as a sub-moa rifle, since it will shoot 1.25 moa groups with the same loads, often on the same day.
Sadly, in the internet, it is easy to pad the truth, since no real checks and balances exist. But seasoned shooters can often pick the imagination from the reality, lol.
Regards, Dave.
Modern, centerfire.... Free float barrel plus modern machining methods has made the formula for accuracy simple..
Modern rifle quality is greatly exaggerated due to millions of youtube videos ("I bought this rifle yesterday for $300 with a scope I think it is great, look at me cycle it in my room!") and very limited actual use. In general there are more rifles sold while they are on average used less and less by their owners.
Rifles used to be good to go from the factory. Now most of the "modern hunting cheap but great" rifles require gunsmithing right out of the box. Just look at the amount of threads and guides on bedding, trigger jobs, this and that, replace stock right away, polish bolt, aftermarket extractor shmactor. It amazes me to be honest. If a rifle needs a new stock, new trigger, bolt job, bedding and tune up it is no longer quality production rifle. It is a half backed junk. Walmart "great value" proposition. Can you even imagine they will have a lifespan of Lee Enfilds and Mausers of old days of "crude manufacturing"?
Yes, in a 100 even in last 50 years our manufacturing technologies leaped forward, however we are not getting even near the level of advancement in mass production rifles. PR, marketing and advertisement on the other hand are leading the way.
On top of that an average skill of a shooter goes down compared to old days so most people won't see the difference anyway - "all rifles shoot better than me". Today no one would ever dreamed of inventing Palma and hope anyone would follow these outrages rules. And they didn't even have these 10 ton benchrest machines with gazillion of zoom in optics and electronically measured powder charges. They would take practically bare stock mass produced military/hunting rifle of the day. Can you do that with that $300 packaged deal plastic junk we have now?
The truth is, groups are mostly useless for hunting rifles. They do work to a degree, because they speak to a rifle's consistency. The problem comes in the fact that we don't often shoot 2 or more shots at the same spot when hunting. As I understand it, in Germany, rifles were tested in terms of where the first shot from a cold barrel went, and that would determine whether it was pulled from the line and sent to the snipers. The ultimately impractical true test would be to fire the rifle once at the target, come back the next day and the next, doing the same thing. Were all three days' first and only shots in the same place? If yes, you have a truly worthy hunting arm.