I think the 721/722 are under rated. I have a couple and just rebarreled a 270 to a 30-06 mountain barrel. Check your stock, they can loosen up or get soft from oil. The dog knot makes them shift too from my experience but usually you can still get them to shoot 1-1/2" or better.
Another option is a take off barrel. Mine headspaced fine and indexed correctly and they are usually easy to come by one with low or no round count for $50.
The only problem with them is the extractor. They are as rare as hens teeth now and if it breaks you will need to either do an AR or Sako type or reface the bolt.
I gave $225 for my last one and will snag as many as I can for that money. Triggers are very good if clean.
Won't necessarily get your money back out of it but it will last another 60 years.
