Hi Paul, I also like the Federal paper hulls for BP. A once fired paper hull case mouths are nice and round and much easier to load the nitro cards and fiber wads than plastic.
This is reason I decided to use Federal paper for spreader loads using a 16 ga Polywad disk. I loaded up the recipe in my first post and shot skeet with them this morning. The gun I used had .040 and .020 thousands restriction. Worked very well.
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