Here are pics of the sleeves. They are approximately 1 1/2" long. I cut them in half to fit above the filler wads and below the crimp.
Gualandi wad, 1/8" 12g nitro card, 1/2" 12g fiber wad and the sleeve on top. Using new uncrimped hulls I don't need an OS card. If I use previously crimped hulls I use an OS card to be certain I don't have that little opening in the crimp that allows some shot to trickle out.
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