every rifle or barrel is a law unto itself. you can't be guaranteed how well it will shoot, and what weight or brand of projectile / propellant it will like without experimenting. usually the .308 is a very accurate platform to work with if the chamber is done concentric with the bore and it is not 'oversize' or out of SAAMI spec'.
for those .44 mag' shooters who are having trouble with oversize bores i make the following suggestion which may have been made here before even if I don't remember it: go with a large-diameter projectile using a gas check. if the groove diameter is .432, which IS large, then a .433 or .434 diameter hardcast bullet with a gas check should help. the rifles with the old-style micro-groove will benefit from the gas check gripping the rifling, and the large diameter of the projectile speaks for itself.
one more thing: a softer, more-expansive bullet can be shot out of a micro-groove if a gas check is used to grip the rifling to help accuracy. on some animals that expansion will greatly help.
i have given up on shooting hardcast lead that has no gas check in a micro-grooved Marlin barrel. it's too easy to do it with a jacketed bullet!
good luck,
ss'