I recall some years ago they just didn't have a "run" set up to do some calibers... had a long wait.
HOWERVER, their website indicates they HAVE dropped a number of 1B's, including .243 win and .338 win mag. I was sad to see them drop most of their 1S's a few years ago (I have a 7mm rem mag in 1S that I am very fond of).
I *HOPE* this turns around with the economy when it improves (*THAT* sounds optimistic, doesn't it?). I've noticed a significant contraction in a number of lines of firearms/ammo options (though Remington seems to be pushing more and more...).
Dan