Here is a link for the 444's at cabelas:
http://www.cabelas.com/cabelas/en/templates/links/link.jsp?id=0012630214282a&type=product&cm Cat=search&returnString=hasJS=true&_D%3Aha sJS=+&QueryText=powerbelt&_DARGS=%2Fcabela s%2Fen%2Fcommon%2Fsearch%2Fsearch-box.jsp.22&N=4887&Ntk=Products&Ntx=mod e+matchall&Nty=1&Ntt=powerbelt&noImage =0&returnPage=search-results1.jsp
They are listed under the hollowpoints, but just scroll down and you will see them with an * meaning they are not hollowpoint. They offer them in copper plating and lead.
I actually didn't think that they were produced any more, but I guess they are. The only 2 elk I have killed with a muzzleloader were taken with this bullet. In fact theywere the only bullets they produced the first fewyears they were in business. I am pretty sure that the hollow points were in response to hunters using the flat points and telling the company that they were getting complete pass throughs without ANY expansion. I know that was true on a bull elk I killed. I shot him through the chest and it passed through both lungs and the heart. The exit hole was no bigger than the entrance hole. This was with the copper plating. However, I did not hit any bone. Sounds like a bullet failure right???? NOT. The bull turned around 180 degrees, took 1 step and fell over. Bottom line is that a 50 caliber hole through the chest is deadly with or without expansion. Would like a little expansion, and I think that powerbelts felt like adding the hollowpoint/aerotips were the answer. Not sure it was.
Making me think about going back to the 444's. Question is pure lead or copper plated? I am also going to try the no excuses 460 gr bullets.
To top that off, I just got a pound of BM3. Going to try it out in my Omega. Will probably start about 85 grains and see how those two shoot.