I know the expected number of rounds of M1906 ball out of a Springfield barrel were supposed to be around 6000 rounds back in the pre WWI period. This is with a .30o bore and .004 grooves, which makes the grove diameter .308 nominal, .3085

That said the M1917 used the Enfield like 5 grove with the lands being .005 dep, Bore .300, so in theory it should last a wee bit longer.