Just a heads-up. This concerns the Green Dot with the new green lid. Per Alliant, they changed the manufacturing process a couple years ago but not the formulation of GD to help make it burn cleaner. Since that change people have found that the velocities and pressures of previously Alliant published recipes have increased.
There is a poster over on the Upland Journal website who has tested a multitude of 16ga. recipes and apparently noticed that this indeed might be the case.
Any recipes that are a couple years old and that are being filled with the new green lid GD might want to be sent off to be tested.
Just passing this along for the sake of our old guns. It might be a good thing to go over to the Upland Journal reloading forum and give it a read and draw your own conclusions.
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