I shoot one of these. Will have to pull out a target, but if I remember right, I can put 70-80 in an 8" circle at 30 yards. I have a Tru Glow choke with Federal Premium #6s in 3" mag. I've shot Winchester 2 3/4" through it will similar results, but I like the 3" a little more.
I don't know if the bone collector is different than what I have. Mine is the base model. Its basically the same thing as the 870. So, whatever works in an 870 could work in the 887.
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