Choke constriction info.

[Big D]

My Fox Sterlingworth is .044" in both barrels. I believe it will shoot 1" groups at 100 yards

[Bill Murphy]

The "chart" does not mention that the bore diameters listed are nominal dimensions and, for example, about half of the Parker production was not bored to those dimensions. Some comment should be made about early Parkers, Super Foxes, German guns and many other examples that do not conform to the .729 standard.