Charlie - I am using a Mod choked 12 gauge for the 1 ounce loads at 16 yards and for the 1 1/8 ounce load, too. For the yardage 1 1/8 ounce loads, depending on the wind, it is either IM or LF. Since I make my own shot the cost differential for 1 ounce vs. 1 1/8 ounce loads is immaterial. The hotter Fed 209A shot velocity contributes to whacking the clay target harder and making chips or soot the result.
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