5er did do a report on them not so long ago.
unfortunately I cant get the search to work.
From memory they did score well.

I have been using them on small game and some ferals and I will tell you they do leave a gaping hole.

IMO they are real good value for the money.
I have one that has been shot into the target 50 times and is still sharp it wont cut hair but with a couple of swipes with the diamond hone it will