Thanks again for comments

I'm getting the impression that with .223 one should avoid aluminium and choose Stainless or Titanium to prolong usage and maybe avoid the Mods using o-rings? I went down a ballistics rabbit hole last night and now I have got a head full of harmonics v accuracy messing with my head! I won't be homeloading anytime soon, factory 55gr V-manx seem to be reliable in almost any barrel and I am simply anticipating that with a 60/175 yard zero and only an inch drop out at 200 yards, that any combination of Barrel, Bullet and Mod should get the job done from a good vantage point to where I know the fox's regularly visit.