They are cheaper. So far I found a 20 pack for $20 with free shipping. I'm going to get some. They're cheaper than the Barnes i'm using.
I found this review on the 444gr flat point all lead. I would think the 405gr FP should work as good. The review is from this forum a few years ago.
"I saw a 444 gr. Powerbelt that was recovered from a Bison shot near Hartzel, Colorado recently. Great looking bullet - expanded to about 3/4 inch with a lot of shank still driving it. It was found just under the hide on a quartering away shot."