Blong,
I hope you're wrong man. So far, all I've shot out of it are low brass 2 3/4 and everyone of them has ejected.
He is wrong, at least in my experience. Mine has shot everything it's been fed, from the cheapest Walmart shells on up to good Magnums. If I remember correctly there is supposedly a break in period where shooting mild loads isn't recommended but mine got broken in during duck season...