Kmrere - I'm not answering for the gunnut here but you didn't say how well or poorly she shoots. If she shoots good, then leave it and roll you own loads or (I think you can) buy ammo from some of our different sponsors. With proper loads the 7.65x53 is every bit as good as the 308, period. No critter is going to notice the difference of 50'/sec or whether the bullet impacted 1/4" higher than another would have.
I suppose you can go through the hoops to have the barrel re-cut, purchase brass, get a .318 ball expander for your reloading die, locate .318 bullets, brew up your own loads and wind up with something effective; if you want to go through the hoops.
When you say a 'moderately worn barrel' - whatcha mean???? Dark bore, pitting, shiny bore, dings on the crown - er what?
'Shaving the leading edge of the lands' could most likely be accomplished by fire-lapping your barrel, if you need it. I would like to read more of what the inside of that barrel looks like and what the gunnut has to say about it. Some barrels appear so shiny when you put a bore light to them that it is hard to distinguish the lands and grooves and that is the effect you look for in a properly lapped barrel - at least I do. Tell us more. Mikey.
