They did that. Ruger has bounced around from restocking them, to recommending that they be bedded before they were shot to refusing warranty if you so much as touched the action screws. I hope they are bouncing in your favor now. Its been a few years since they were discontinued; did you find a new one squirrelled away somewhere?
I've got a .458 reamer coming, with the intention of rechambering my Winchester after my next buffalo hunt. With the speeds I'm getting there may not be any huge advantage but I'll never know unless I try.