Razor-Ring Broadheads

[Lyle]

Has anyone used these broadheads. I can best describe them as a three bladed 'apple corer'. They look like a normal 3 blade broadhead with a ring about the size and shape of a plain wedding ring fitted into the blades. I bought them through a shop in Townsville QLD. Haven't been game to try them on my target butt as I don't think I'd get them out without destroying the butt.

Any comments good or bad. :D :(