New calibers get created, 17hm2, 17HMR. What would it take to make match grade 22WMR ammo?
With the caveat that some ammunition just won't shoot in some rifles, it's interesting to consider the introduction of the 17HMR.
When it first landed with the HMR market, it was pretty obvious to anyone with a WMR rifle, that the Hornady product was way out in front for accuracy, and most of the 17HMR's available would turn in groups never seen by the eyes of a WMR fan at any distance you made a comparison. My fist encounter was sitting next to a shooter on a club with a dedicated rimfire range. His target was sitting right next to mine at 100yds, and he was shooting groups that could be covered with a Quarter. When Hornady introduced their 30gr WMR load, I grabbed the first box I saw, and my M93 turned into a completely different rifle with respect to accuracy. The Hornady HMR and WMR ammunition is manufactured to the same standards, and having used thousands of Hornady bullets over several decades, Hornady can make some very good
jacketed bullets. The WMR ammunition products of the age were largely loaded with healed bullets of swaged lead, and the few jacketed bullet products were made and sold to compete with the legacy products available, not the HMR.
Many of the new product offerings for the WMR market consist of loads with precision jacketed bullets, and if you test a few of them, most, if not all of them will out perform the accuracy of the swaged lead plated products. They do cost more. I have stocked up on the jacketed bullet WMR ammo from Hornady, Speer, Remington, CCI, and Federal, including the loads for short barrel handguns. It's all good stuff in the 3 rifles I have chambered for the WMR. My M93 and my RAR/8373 with the heavier barrels will both keep groups in the MOA range +/- at 100yds, minute of ground hog out to 150yds.
I still have and use the legacy ammo, after all, CCI maxi Mags, (and the ammo they make for other company's), is still adequate for dropping pests and predators quite a ways out, (100yds or even a bit farther). I also have a good supply of Winchester 45gr Dynapoint, it's fine in my handguns as far as my eyes can tell, and relatively inexpensive. How much accuracy do you need?
No matter what ammo you bring home, accuracy is still slave to a good trigger, mass, barrel quality, optics, and talent/practice.