With the caveat that mine's a 28" barrel (it's also my duck hunting gun) and will therefore pattern a bit tighter because of it, I have been thrilled with my Indian Creek .665, and I'm shooting high velo Winchester Double X #5. Had 104 in 10" at 40 yards.
Would get much higher pellet counts and tighter patterns if I shot slower loads or size #6, I have no doubt. Going to pattern 2 1/8oz Winchester LB's soon.
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