Actually just saw those today. I guess it they can handle a heavy 44spl load it'd be good for deer and I could use lighter loads for varmints and plinking.
The forcing cone on them is very thin. Don't know if I would put too many high pressure rounds though it. The one I had I got rid of, just couldn't get it to shoot, no matter what I put through it. The gun feels great in the hand, will probably break down and buy another in hopes that it shoots.