Testing 8GA FH in Enfield, 1050 gr slug in wad cup, 120 gr
of 4759, over 2000 fps. Cases extract easy. Hardly any
base cup expansion..Here is picture of a
sectioned 8ga plastic case I did,
showing how heavy and strong it is built. The
plastic is one piece compressioned formed and
the sides of the cases are twice as thick as
12ga cases.You can see the double thickness
of the base cup. Ed