IMO any 22 cal that will fit in an AR is too close to the 5.56, 200fps doesn't mean much in the real world. A good 6mm in an AR could take varmints, yotes, deer and shoot long range and there aren't any SAAMI 6mms in an AR.
We have 6.5s and 6.8s, the 25 and 7mm would be too close. People seem to love the 30 cal, even the anemic 300AAC. A 30 cal based on that Nosler case or the 6.8 that is short enough to use 125-130gr bullets would be a great medium game cartridge. The 30 Herrett or 30 Gremlin or a 6mm would have been better than a 22 Nosler.
