It's about time you used that nice AXX Lithgow barrel, they are pretty rare these days.
I picked up a 7.62 Conversion with one of these barrels at a gun show a couple of weeks ago, took it to the Range and put up a nice 47.2 score at 500yds on a blustery day on modern targets, so I guess these old girls can still keep up.
All I have to do now is convince the new owner to keep it as is.