Thickness (mm)*
I	II	III	IV	V	VI	VII	VIII
5.56	6.26	7.15	8.30	5.71	6.30	7.15	8.37
4.89	4.97	4.99	5.01	2.48	2.50	2.49	2.52

Width at Mark 3 (mm)
Mark III (5mm thickness)
Initial 	Final
19.15	19.73

Mark VII (2.5mm thickness)
Initial 	Final
19.20	20.54