I shoot that amount easily in a year between my Garand and 03-A3. A friend of mine had a 7400 he loved it but always wondered why it was never a design considered to be used as a service rifle, he decided to make his a service rifle and bought those extended 20 round magazines for it I think ramline was making. He shot it alot as if it were a M-1 or a M-1A
roughly 3,000 rounds of 30-06 150 grain core lokts later the seals in the gas system needed replaced. My garand has had roughly 5,000 rounds through it and still functions flawlessly to this day it has never jammed once.