Federal shells have a fiber base wad - these are the ones that can come loose and lodge in your barrel. Rem and Win don't have the fiber base wad [ to the best of my knowledge ] . There is no problem with them.
PSB - Precision Reloading's buffer material
BP - Ballistic Products buffer material
FBS - felt Blue Streak wad
NC - nitro card wad
MR - Mylat wrapper
x10x - over powder wad from Ballistic Products
notes on loads #18,68,and 69 - wad combo has a 10ga 1/4" wad and a 12ga 1/4" wad
#37 - 16 or 20ga card may be used ILO 24ga wad
hope this helps - Paul
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