RE: You guys see this stuff yet?
I'm guessing this is Hevi-Shot by another name. I patterned Remington® Hevi-Shot #6 in my Mossberg 500C 20GA last weekend. Using a Hastings® Super Full Extended Choke Tube (.570") I got EXTREMELY DENSE PATTERNS @ 35yds. That is quite good for a 20GA! I'm searching for some of these Winchester® loads to pattern as well.