"Fighting the last war"...
Garand was built (1936) with an 8 round magazine & that god awful clip because a flat bottom was believed better for trenches and for use of a sandbag rest.
Garand design was updated by the Italians... Think of a M14 in 30-06.
I believe it was designated the BM-58. Used to be available back in '70s; Garand gas-operation and 20rnd mag. in 30-06. Wish I'd bought one when they were around.