I got one and love it. Its nipping at the heals of a 22-250 with less powder, less recoil and less noise. Nice little round. Mine likes a 52gr AMax with a Rem 7 1/2 primer and 26.8gr of H335.
Case life is excellent. Doest flow very bad at all. I can load many times before trimming, actually I just fire form some more and keep loading because the brass has been loaded so many times by the time it needs trimmed.
I dont know about barrell burn, but I would think it would take forever....
Another cool feature is you can shoot standard 223s just as accurate, normally, when fire forming and it doesnt hardly change your zero at all...
Kinda cool to watch stuff go poof in the scope...
Andy