I've never owned an XDs, but I have run near 10k through a std XD. My case heads are fully supported in the chamber. Not one single factory load through the gun, and about half of what I've run through the gun has been warm to hot. They are fine guns. All I've replaced on mine is the recoil spring, three or four times. I'd not have pulled the trigger on rounds sticking out of the chamber that far. I'd put an empty, sized piece of brass in the gun, and if that much of the head was unsupported,I'd take it back to where I bought it and get a refund.
It's sad that that gun got to you like that. I can't imagine they engineered them that way, but I've seen hokey crap before. Engineers are fallible, as are QC and machining processes. I'd tell them to shove their frame fee up their ass, and to be happy I don't sue them for risking my life with a faulty product.
