Kevin, I been an advocate of using your chambering specs. because for shooters like my shelf who are not chasing National titles and just want good shooting rifles. without having to chase ammo (especially now) IMO the chamber is the friendliest meaning finding ammo has been for me not very hard. now my comment about not chasing National titles doesn't mean using this chamber will not be competitive, my rifles have been.
I shot against the number one ARA shooter twice and finished second both times the last match our first two targets were under 1800 so conditions were not friendly. I think it proves there is more ways to do anything.
Here are the latest results shooting a barrel with a Nevius chamber shot 2-hours ago my time. barrel is a BM HVRT 23-3/4" as that was what it slugged. no tuner
our match was cancelled because of the high winds but I just had to shoot it. I would say I got a pretty good shooting barrel ammo was CX bought blind about 3 weeks ago from CC.
Lee
p.s forgot to say those 5 shots was the very first besides the two my smith shot to check extraction.