Basically, all firearms that use a certain animation are misaligned. There is a fix for it on the pc http://newvegasnexus.com/downloads/file.php?id=38927, but did the recent patch do anything for it?
It's a bug with animation assets and not in the actual FalloutNV.esm, so probably not. I am not sure if the consoles can do content asset invalidation like PCs can.
(as an aside... I was the one that brought attention to that after wondering why I absolutely svcked shooting the hunting rifle with iron sights in 1stperson :whistling: )