I have a Benchmark on my long range rig. It shoot fantastic! A true 3/8 moa or better hunting rifle using hunting bullets.
I can't speak to their work but their barrels are great in my experience.
These are the first 12 shots out of the barrel during break in at 100 yards using an unknown starter load. It was shoot-clean-shoot-clean... Started in the top left and went clockwise ending on the bottom left. (yes, it was that close to sighted in from the start!)
It's only gotten better since then