I know that 7.62x51 can be fired from a .308 Winchester action/ barrel and not necessarily vice versa. I recently picked up an LWRC MKII REPR, chambered in 7.62x51 and when I read the owner’s manual, LWRC stated to only use Winchester .308/ 7.62x51 NATO ammunition. Can anyone help me out on this one? Am I wrong to think that one should not fire .308 ammo from a weapon chambered in 7.62 NATO?? Thanks