Curious on your history of the 22NOSLER...as mine is a 12tw barrel with extra grooves...
it was a 222rem mag....had it rechambered to 223...cartridges wouldn't stay in magazine...204 Valk were first to stay in..but I opt for the 22NOSLER....stay in and shoot decent for a barrel that most likely has well over 1000 rounds thru it...
pd dogs don't like it...found some 22 cal partitions I'm gonna load someday....