15 or 20 years ago I bought a LH .223 Savage. it shot hardball to softball size groups with everything I put thru it, factory and handloads..
Called Savage I could hear the skepticism in the guy's voice but he said to send it to them.
So I did.
they sent it back and I promptly shot a 9/16" size 5 shot group using reloads with mixed military brass and IMI FMJ bullets...

Savage CS is AOK in my book