Don't waste time on something that requires all sorts of experimentation. You say this is a recent phenomenon and it happens with all the guns you have tested on the pattern board... First thing to discover is what has recently changed... Certainly the guns haven't changed... Get your vision tested.
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"I'm a Setter man.
Not because I think they're better than the other breeds,
but because I'm a romantic - stuck on tradition - and to me, a Setter just "belongs" in the grouse picture."
George King, "That's Ruff", 2010 - a timeless classic.
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