Thickness (mm)*
I	II	III	IV	V	VI	VII	VIII
5.56	6.28	7.15	8.30	5.53	6.20	7.22	8.24
4.91	4.95	4.96	5.14	2.42	2.56	2.44	2.58

Width at Mark 3 (mm)
Mark III (5mm thickness)
Initial 	Final
19.07	20.17

Mark VII (2.5mm thickness)
Initial 	Final
19.20	20.54