to be honest for hunting the factory triggers are rather just fine, the older 700's you can make them way better, or a smith can for you?
but in field hunting, unless your a LONG range guy, factory is just fine, don't buy into the need to BETTER "X" and all
I own several full blown custom rifles and down , I have shot many sub MOA factory guns on stock triggers!
like all things in life you can add what ever makes you happy, but its honestly NOT needed!