I don't think they know. We had a thread here where someone had contacted Howa about a 6.5 barreled action and they told they were discontinued or maybe backordered but I had just been looking at them and dropped the link for them in stock. Their catalog and website suck. I grabbed a 300 years ago I need to put together. I was considering a 450 but those seem to have been disappeared as well. I'd probably just buy a Ruger at this point and take the AR mags as a bonus. Too bad Ruger didn't make an actual mini action with AR mags. A normal production grade gun to compete with the Mini Fix could be pretty interesting.