I actually purchased some 45 colt, (called long colt by some) at a local gun show, about 20 year ago now, shot it all up, and now using it for reloading,
It is all starline brass.
My deceased brother used to say I made out like a bandit. He considered starline brass as pretty much match quality brass. He would say is every bit as good as Norma brass, and that also was pretty much match quality.
How do ya'll feel about starline brass?
It's the best game in town. Good quality, reasonable priced, and generally more available in large amounts. In 45 Colt, loading sane, Starline will last 30 or 40 loadings easy. Tier 3 (Ruger Only) will start to stretch the primer pocket after about 8 to 10 or so. You can switch to metric primers (Russian, Serbian, Italian, Spanish..etc) and get another 3 or 4 out of them.
For rifle, I wouldn't say it's as good as Peterson or Lapua, but it's magnitudes better than Hornady, and on par with the big names (Rem, Win, Fed).
Since the big manf haven't had brass available since 2019, and there are only a few makers with a lot of caliber options outside of them (Jagemann, Armscor), for a lot of stuff, Starline is the only option. I used to buy a lot of Jagemann, but now that Ammo Inc owns them, they haven't had brass available for 2 years. I do buy a lot of Armscor, but not for 45 Colt anymore. Nothing wrong with it, it's just that it won't fit in Mark 7 shell plates.
By the numbers, since the beginning of the year, I've bought about 50K pieces of new Starline brass, 30K Armscor, and maybe 10K of "other". For 45 Colt, I only buy Starline at this point.