I run the code black duck and goose for waterfowl in 3 dif guns. I also have the anaconda long rangel for my SBE II that shoots extremely tight with 2 steel and under and heavy trap loads. All give excellent, even patterns. My buddy Todd picked up a CB turkey for his SBE II and shot probably 5 dif rounds through it. While even, it didn't give a hotter core that we both like. I lent him an original jellyhead, a Trulock and a Carlson's Longbeard. They ALL patterned better with every load but the Longbeard shined with 3" 6s and 5s. Very dense, even patterns.